Energy flow display method and device of vehicle, vehicle and storage medium

Abstract

The application relates to a vehicle energy flow display method and device, a vehicle and a storage medium, which comprises the following steps: when the current vehicle is in a non-plug-in state, determining the current energy flow direction of the battery current state, the front motor and battery section, the rear motor and battery section, the battery and engine section, the engine and front motor section, the engine and rear motor section, the front motor and wheel section and / or the rear motor and wheel section; when the current vehicle is in a plug-in state, determining the current energy flow direction of the charging port and battery section and / or the charging port and charging cable section; obtaining a to-be-displayed energy flow state according to the current energy flow direction and an energy flow speed level corresponding to a real-time battery current value; and displaying the to-be-displayed energy flow state on a central control display screen of the current vehicle. Thus, the problems of too much complexity, space occupation, display complexity, user difficulty in judgment, inconsistency between energy flow display and actual situation in complex working conditions and the like caused by using an enumeration method to identify the energy flow direction are solved, and the energy flow judgment can be simultaneously applied to pure electric vehicles, extended-range electric vehicles and hybrid vehicles.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, device, vehicle, and storage medium for displaying energy flow in a vehicle. Background Technology

[0002] With my country's strong support for environmental protection, the technology of new energy vehicles (such as pure electric vehicles and hybrid electric vehicles) has developed rapidly in recent years. Unlike the mechanical power transmission of ordinary fuel vehicles, the power of new energy vehicles can come from a battery pack and be driven by a motor, or it can be replenished by receiving electricity from charging equipment. The energy transmission paths corresponding to different energy transmission conditions of new energy vehicles are generally different. For example, when the car is driving, energy flows from the battery pack to the motor, while when the car recovers energy, energy flows from the motor to the battery pack. Therefore, how to clearly present the energy transmission scenario of the vehicle to the driver to enhance the technological feel of new energy vehicles is a technical problem that the industry urgently needs to solve. At the same time, it is also very important to be able to obtain and compare the changes in the energy information of the vehicle with the energy information of other types of vehicles in order to process or obtain a better driving experience.

[0003] In related technologies, patent [CN110194183A - A method, system and vehicle for displaying energy flow in a dual-motor hybrid electric vehicle] provides a method, system and vehicle for displaying energy flow in a dual-motor hybrid electric vehicle. The main feature is that the vehicle controller analyzes the received operating status of the engine, drive motor, generator and power battery to determine the energy flow between the power sources of the hybrid system, and ultimately determines the energy flow operating mode of the hybrid vehicle's power system. The energy flow operating modes include: default mode, parking power generation mode, pure electric mode, series mode with engine working alone, series mode with engine and motor driving together, engine direct drive mode, parallel mode with engine and motor driving together, driving charging mode and energy recovery mode.

[0004] However, this method has a single energy flow operation mode and cannot distinguish between the energy flow state of the front and rear motors working independently and the external charging state; it also cannot distinguish between the battery discharge and charging speed and the wheel speed.

[0005] Patent [CN111959493A - Method, Device and Vehicle for Determining Energy Flow in Series-Parallel Hybrid Vehicle] discloses an energy flow display method, which mainly involves determining the energy flow state based on the vehicle's overall operating state, the current information of the power battery, the actual output torque of the front and rear drive motors, the output torque of the generator, the operating state of the front axle clutch, the operating state of the engine, the vehicle's charging state, and vehicle speed information. The energy flow state is divided into 26 states, including: stationary state, external charging state, engine direct drive state, hybrid front-wheel drive charging state, hybrid rear-wheel drive charging state, hybrid four-wheel drive charging state, hybrid front-wheel drive discharging state, hybrid rear-wheel drive discharging state, hybrid four-wheel drive discharging state, hybrid front-wheel drive holding state, hybrid rear-wheel drive holding state, hybrid four-wheel drive holding state, hybrid front-wheel drive recovery state, hybrid rear-wheel drive recovery state, and hybrid four-wheel drive recovery state.

[0006] However, this method uses an enumeration approach, resulting in too many state variables; and it cannot distinguish between the speed of battery discharge and charging and the speed of wheel speed. Summary of the Invention

[0007] This application provides a method, device, vehicle, and storage medium for displaying energy flow in a vehicle, to solve the problems of using enumeration to identify the direction of energy flow being too cumbersome, taking up too much space, displaying complexly, making it difficult for users to judge, and the energy flow display being inconsistent with the actual situation in complex working conditions, thereby improving the user experience.

[0008] The first aspect of this application provides a method for displaying the energy flow of a vehicle, including the following steps:

[0009] Check if the current vehicle is in the plug-in state;

[0010] If the current vehicle is not in a plug-in state, then the current state of the battery, the current energy flow between the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment are determined based on the current gear of the current vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current state of the rear motor and the wheel segment. If the current vehicle is in a plug-in state, then the current energy flow between the charging port and the battery segment and / or the charging port and the charging cable segment is determined based on the current discharge gun connection state, the current charging gun connection state, and / or the real-time current value of the battery.

[0011] The energy flow status to be displayed is obtained based on the current energy flow direction and the energy flow rate level corresponding to the real-time current value of the battery, and the energy flow status to be displayed is displayed on the central control display screen of the current vehicle.

[0012] Based on the above technical means, the calculation of energy flow is simplified, and the energy flow direction and energy flow rate are integrated on the user interface, so that users can vividly see the energy distribution of the vehicle on the vehicle's infotainment system.

[0013] Further, determining the current state of the battery, the current energy flow between the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle, includes:

[0014] If the current real-time current value of the battery is greater than the first preset current value, then the current state of the battery is the battery discharge state.

[0015] If the current real-time current value of the battery is less than or equal to the first preset current value, then the current state of the battery is the battery charging state.

[0016] If the current gear is forward and the current real-time battery current value is greater than the second preset current value and the front motor torque value is greater than the first preset torque value, or if the current gear is reverse and the current real-time battery current value is greater than the second preset current value and the front motor torque value is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the front motor.

[0017] If the current gear is reverse and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is forward and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the front motor to the battery.

[0018] If the current gear is forward and the current real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is greater than the second preset torque value, or if the current gear is reverse and the current real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the battery to the rear motor.

[0019] If the current gear is the reverse gear and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or if the current gear is the forward gear and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the rear motor to the battery.

[0020] Based on the above technical means, the calculation method is simplified by decoupling the energy flow calculation.

[0021] Furthermore, based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed, the current state of the battery, and the current energy flow direction of the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment, the method further includes:

[0022] If the engine is in a running state and the current real-time current value of the battery is less than the fourth preset current value, then the current energy flow direction between the battery and the engine section is from the engine to the battery.

[0023] If the engine is in the start state, the current energy flow between the battery and the engine section is from the battery to the engine.

[0024] If the current gear is the forward gear and the front motor torque value is greater than the third preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the front motor torque value is less than the third preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the front motor segment is from the engine to the front motor.

[0025] If the current gear is the forward gear and the rear motor torque value is greater than the fourth preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the rear motor torque value is less than the fourth preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the rear motor segment is from the engine to the rear motor.

[0026] By simplifying the calculation of energy flow using the aforementioned technical means, we can flexibly adapt to various complex working conditions.

[0027] Furthermore, the step of determining the current state of the battery, the current energy flow direction between the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle, also includes:

[0028] If the current gear is the forward gear and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, or if the current gear is the reverse gear and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the front motor to the wheel end.

[0029] If the current gear is the forward gear and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, or if the current gear is the reverse gear and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the wheel end to the front motor.

[0030] If the current gear is the forward gear and the rear motor torque value is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is the reverse gear and the rear motor torque value is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the rear motor to the wheel end.

[0031] If the current gear is forward and the torque value of the front motor is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is reverse and the torque value of the front motor is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the wheel end to the rear motor.

[0032] Based on the above methods, it is possible to distinguish the energy flow direction when the front and rear motors work independently, thus enriching the energy flow operation modes.

[0033] Further, determining the current energy flow direction between the charging port and the battery segment and / or between the charging port and the charging line segment based on the current discharge gun connection status, the current charging gun connection status, and / or the real-time battery current value includes:

[0034] If the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging line segment is from the charging port to the charging line.

[0035] If the current discharge gun connection status is not connected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging line segment is from the charging line to the charging port.

[0036] If the real-time current value of the battery is greater than the fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port.

[0037] If the real-time current value of the battery is less than the sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

[0038] Based on the above technical means, the method of identifying the energy flow direction by enumeration is abandoned, the calculation of energy flow is decoupled, and the calculation method is simplified.

[0039] Furthermore, before obtaining the energy flow state to be displayed based on the energy flow rate level corresponding to the current energy flow direction and the real-time battery current value, the method further includes:

[0040] Identify the current current level range in which the real-time current value of the battery is located;

[0041] The energy flow rate level corresponding to the real-time current value of the battery is obtained from the preset current level range-flow rate level relationship based on the current current level range.

[0042] Based on the above technical means, it is possible to distinguish the intensity of battery power consumption or the speed of power replenishment, and at the same time, the speed of vehicle speed can be more vividly distinguished by the speed of wheel rotation.

[0043] A second aspect of this application provides a vehicle energy flow display device, comprising:

[0044] The detection module is used to detect whether the current vehicle is in the plug-in state;

[0045] The determination module is used to determine the current energy flow direction of the battery, the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment, based on the current gear position, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed, if the current vehicle is in a plug-in state; and to determine the current energy flow direction of the charging port and the battery segment and / or the charging port and the charging cable segment, based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value.

[0046] The display module is used to obtain the energy flow status to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time current value of the battery, and to display the energy flow status to be displayed on the central control display screen of the current vehicle.

[0047] Furthermore, the determining module is specifically used for:

[0048] If the current real-time current value of the battery is greater than the first preset current value, then the current state of the battery is the battery discharge state.

[0049] If the current real-time current value of the battery is less than or equal to the first preset current value, then the current state of the battery is the battery charging state.

[0050] If the current gear is forward and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is reverse and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the front motor.

[0051] If the current gear is reverse and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is forward and the current real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the front motor to the battery.

[0052] If the current gear is forward and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or if the current gear is reverse and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the rear motor.

[0053] If the current gear is the reverse gear and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or if the current gear is the forward gear and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, then the current energy flow direction between the front motor and the battery segment is from the rear motor to the battery.

[0054] Furthermore, the determining module is also used for:

[0055] If the engine is in a running state and the current real-time current value of the battery is less than the fourth preset current value, then the current energy flow direction between the battery and the engine section is from the engine to the battery.

[0056] If the engine is in the start state, the current energy flow between the battery and the engine section is from the battery to the engine.

[0057] If the current gear is the forward gear and the front motor torque value is greater than the third preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the front motor torque value is less than the third preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the front motor segment is from the engine to the front motor.

[0058] If the current gear is the forward gear and the rear motor torque value is greater than the fourth preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the rear motor torque value is less than the fourth preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the rear motor segment is from the engine to the rear motor.

[0059] Furthermore, the determining module is also used for:

[0060] If the current gear is the forward gear and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, or if the current gear is the reverse gear and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the front motor to the wheel end.

[0061] If the current gear is the forward gear and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, or if the current gear is the reverse gear and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the wheel end to the front motor.

[0062] If the current gear is the forward gear and the rear motor torque value is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is the reverse gear and the rear motor torque value is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the rear motor to the wheel end.

[0063] If the current gear is forward and the torque value of the front motor is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is reverse and the torque value of the front motor is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the wheel end to the rear motor.

[0064] Furthermore, the determining module is specifically used for:

[0065] If the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging line segment is from the charging port to the charging line.

[0066] If the current discharge gun connection status is not connected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging line segment is from the charging line to the charging port.

[0067] If the real-time current value of the battery is greater than the fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port.

[0068] If the real-time current value of the battery is less than the sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

[0069] Furthermore, before obtaining the energy flow state to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time battery current value, the display module is also used for:

[0070] Identify the current current level range in which the real-time current value of the battery is located;

[0071] The energy flow rate level corresponding to the real-time current value of the battery is obtained from the preset current level range-flow rate level relationship based on the current current level range.

[0072] A third aspect of this application provides a vehicle, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the energy flow display method for the vehicle as described in the above embodiments.

[0073] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the energy flow display method for a vehicle as described in the above embodiments.

[0074] Therefore, this embodiment of the application, by detecting that the current vehicle is not in a plug-in state, determines the current energy flow direction of the battery, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current engine state, and / or the current vehicle speed. If the current vehicle is detected to be in a plug-in state, the current energy flow direction of the charging port and battery segment and / or the charging port and charging cable segment is determined based on the current discharge gun connection state, the current charging gun connection state, and / or the real-time current value of the battery, and the energy flow state to be displayed is displayed on the central control display screen of the current vehicle. This solves the problems of using enumeration to identify the energy flow direction being too cumbersome, space-consuming, complex to display, difficult for users to judge, and inconsistent with the actual situation of energy flow display in complex operating conditions. It can be applied to energy flow judgment of pure electric vehicles, range-extended electric vehicles, and hybrid vehicles.

[0075] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0076] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0077] Figure 1 This is a flowchart illustrating a method for displaying the energy flow of a vehicle according to an embodiment of this application.

[0078] Figure 2 This is a schematic diagram of the energy flow in a non-inserted state according to an embodiment of this application;

[0079] Figure 3 This is a schematic diagram of the energy flow in the insertion state according to an embodiment of this application;

[0080] Figure 4 This is a block diagram of a vehicle energy flow display device according to an embodiment of this application;

[0081] Figure 5 This is a structural schematic diagram of a vehicle according to an embodiment of this application.

[0082] Explanation of reference numerals in the attached drawings: 10-Energy flow display device for the vehicle, 100-Detection module, 200-Determination module, 300-Display module, 501-Memory, 502-Processor, 503-Communication interface. Detailed Implementation

[0083] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0084] The following description, with reference to the accompanying drawings, describes a method, apparatus, vehicle, and storage medium for displaying the energy flow of a vehicle according to embodiments of this application.

[0085] Before introducing the vehicle energy flow display method proposed in the embodiments of this application, let's briefly introduce the vehicle energy flow display method in related technologies.

[0086] The related technology proposes an energy flow status monitoring system and method for electric vehicles, which mainly features: the energy flow status on the central control display interface is displayed dynamically, showing the energy flow direction corresponding to the energy recovery level between the battery and the motor, the remaining electrical energy of the battery, and the rotation direction of the wheels.

[0087] However, this technology has a single energy flow operation mode and cannot distinguish between the energy flow state of the front and rear motors working independently and the external charging state; it also cannot distinguish between the battery discharge and charging speed and the wheel speed.

[0088] In related technologies, enumeration is also commonly used to identify the direction of energy flow, such as: ① pure electric drive, ② pure electric recovery, ③ range-extended drive, ④ range-extended recovery, ⑤ DC charging, ⑥ AC charging, ⑦ range-extended discharge, ⑧ pure electric discharge, ⑨ stationary state, etc., as shown in Table 1.

[0089] Table 1

[0090]

[0091]

[0092] However, with the increasing popularity of range-extended electric vehicles and hybrid vehicles, the calculation of energy flow has become more complex in order to make users more aware of where their vehicle's electricity or fuel is consumed. Continuing to use the enumeration method has the following disadvantages: ① The enumeration amount is too large, occupying communication bytes; ② There are too many judgment conditions, which can easily cause conflicts; ③ Complex operating conditions can easily lead to inconsistencies between the displayed energy flow and the actual energy flow.

[0093] Based on the aforementioned problems, this application provides a method for displaying the energy flow of a vehicle. In this method, when the vehicle is detected to be in a plug-in state, the current energy flow direction is determined based on the vehicle's current gear, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed. Specifically, the current energy flow direction between the battery, front motor and battery, rear motor and battery, battery and engine, engine and front motor, engine and rear motor, front motor and wheel, and / or rear motor and wheel is determined. If the vehicle is detected to be in a non-plug-in state, the current energy flow direction between the charging port and battery and / or charging port and charging cable is determined based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value. The energy flow state is then displayed on the vehicle's central control screen. This method solves the problems of cumbersome and space-consuming methods for identifying energy flow direction using enumeration, complex display, difficulty for users to judge, and inconsistencies between the displayed energy flow and the actual situation in complex operating conditions. It is applicable to energy flow judgment in pure electric vehicles, range-extended electric vehicles, and hybrid vehicles.

[0094] Specifically, Figure 1 This is a schematic flowchart illustrating a method for displaying the energy flow of a vehicle, as provided in an embodiment of this application.

[0095] Before introducing the vehicle energy flow display method proposed in the embodiments of this application, let's first introduce the flow direction and velocity segmentation of the vehicle energy flow in the embodiments of this application.

[0096] (1) The energy flow of the whole vehicle is divided into the following segments:

[0097] ① Battery status;

[0098] ② Front motor and battery section;

[0099] ③ Rear motor and battery section

[0100] ④ Battery and engine section;

[0101] ⑤ Engine and front motor section;

[0102] ⑥ Engine and rear motor section;

[0103] ⑦ Front motor and wheel section;

[0104] ⑧ Rear motor and wheel section;

[0105] ⑨ Charging port and battery section;

[0106] ⑩ Charging port and charging cable segment;

[0107] (2) The energy flow velocity of the whole vehicle can be divided into different levels according to the vehicle model or the design needs of the OEM. It can be mainly distinguished according to the following segments:

[0108] ① The battery terminals are classified into N levels based on their current values;

[0109] ② The wheel end is divided into N levels based on vehicle speed.

[0110] Specifically, such as Figure 1 As shown, the energy flow display method for this vehicle includes the following steps:

[0111] In step S101, it is detected whether the current vehicle is in the plug-in state.

[0112] In this embodiment of the application, the energy flow direction is divided into two parts according to whether the charging gun is connected: the charging and discharging state with the charging gun plugged in and the non-charging state with the charging gun plugged in.

[0113] In step S102, if the vehicle is not in a plug-in state, the current energy flow direction of the battery, front motor and battery segment, rear motor and battery segment, battery and engine segment, engine and front motor segment, engine and rear motor segment, front motor and wheel segment, and / or rear motor and wheel segment is determined based on the vehicle's current gear, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed. If the vehicle is in a plug-in state, the current energy flow direction of the charging port and battery segment and / or charging port and charging line segment is determined based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value.

[0114] In some embodiments, determining the current energy flow direction based on the current gear of the vehicle, the real-time battery current value, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed includes: if the current real-time battery current value is greater than a first preset current value, the current battery state is a battery discharge state; if the current real-time battery current value is less than or equal to the first preset current value, the current battery state is a battery charging state.

[0115] The first preset current value can be a value pre-set by the user, a value obtained through a limited number of experiments, or a value obtained through a limited number of computer simulations; no specific limitation is made here.

[0116] Specifically, such as Figure 2 As shown in 'a', when the real-time battery current value is greater than the first preset current value, the battery status is displayed as a discharge state, that is, the current battery status is a discharge state; when the real-time battery current value is less than the first preset current value, the battery status is displayed as a charging state, that is, the current battery status is a charging state.

[0117] Further, in some embodiments, determining the current state of the battery, the current energy flow direction of the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed includes: if the current gear is a forward gear and the current real-time current value of the battery is greater than a second preset current value and the torque value of the front motor is greater than a first preset torque value, or, the current If the gear is reverse and the current real-time battery current is greater than the second preset current value and the front motor torque is less than or equal to the first preset torque value, then the current energy flow between the front motor and the battery segment is from the battery to the front motor. If the current gear is reverse and the current real-time battery current is greater than the second preset current value and the front motor torque is greater than the first preset torque value, or if the current gear is forward and the current real-time battery current is greater than the second preset current value and the front motor torque is less than or equal to the first preset torque value, then the current energy flow between the front motor and the battery segment is from the front motor to the battery.

[0118] The second preset current value and the first preset torque value can be values ​​preset by the user, values ​​obtained through a limited number of experiments, or values ​​obtained through a limited number of computer simulations, and no specific limitations are imposed here.

[0119] Specifically, this application embodiment divides the energy flow state between the motor and the battery into front motor-battery energy flow and rear motor-battery energy flow. The energy flow direction state determination between the front motor and the battery is as follows: Figure 2As shown in b, the drive energy flow from the battery to the front motor is displayed when any of the following conditions are met: the current energy flow direction between the front motor and the battery segment is from the battery to the front motor.

[0120] (1) D gear & battery current > set value & front motor torque > set value;

[0121] (2) R gear & battery current > set value & front motor torque < set value.

[0122] In other words, when the current gear is forward (D gear) and the current real-time battery current value is greater than the second preset current value and the front motor torque value is greater than the first preset torque value, or when the current gear is reverse (R gear) and the current real-time battery current value is greater than the second preset current value and the front motor torque value is less than or equal to the first preset torque value, it indicates that the current energy flow between the front motor and the battery is from the battery to the front motor.

[0123] Furthermore, such as Figure 2 As shown in c, the recovered energy flow from the front motor to the battery is displayed when any of the following conditions are met, that is, the current energy flow direction between the front motor and the battery section is from the front motor to the battery:

[0124] (1) R gear & battery current > set value & front motor torque > set value;

[0125] (2) D gear & battery current > set value & front motor torque < set value.

[0126] In other words, when the current gear is reverse (R gear), and the current real-time battery current value is greater than the second preset current value and the front motor torque value is greater than the first preset torque value, or when the current gear is forward (D gear), and the current real-time battery current value is greater than the second preset current value and the front motor torque value is less than or equal to the first preset torque value, it indicates that the current energy flow between the front motor and the battery is from the front motor to the battery.

[0127] Further, in some embodiments, determining the current state of the battery, the current energy flow direction of the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed includes: if the current gear is a forward gear and the current real-time current value of the battery is greater than a third preset current value and the torque value of the rear motor is greater than a second preset torque value, or, the current If the gear is reverse and the current real-time battery current is greater than the third preset current value and the rear motor torque is less than or equal to the second preset torque value, then the current energy flow between the rear motor and the battery segment is from the battery to the rear motor. If the current gear is reverse and the current real-time battery current is greater than the third preset current value and the rear motor torque is greater than the second preset torque value, or if the current gear is forward and the current real-time battery current is greater than the third preset current value and the rear motor torque is less than or equal to the second preset torque value, then the current energy flow between the rear motor and the battery segment is from the rear motor to the battery.

[0128] The third preset current value and the second preset torque value can be values ​​preset by the user, values ​​obtained through a limited number of experiments, or values ​​obtained through a limited number of computer simulations, and no specific limitations are imposed here.

[0129] Specifically, the energy flow state between the rear motor and the battery is determined, such as... Figure 2 As shown in d, the drive energy flow from the battery to the rear motor is displayed if any of the following conditions are met:

[0130] (1) D gear & battery current > set value & rear motor torque > set value;

[0131] (2) R gear & battery current > set value & rear motor torque < set value.

[0132] In other words, when the current gear is forward (D gear) and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or when the current gear is reverse (R gear) and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, it indicates that the current energy flow between the rear motor and the battery segment is from the battery to the rear motor.

[0133] Furthermore, such as Figure 2 As shown in 'e', ​​the recovered energy flow from the rear motor to the battery is displayed if any of the following conditions are met:

[0134] (1) R gear & battery current > set value & rear motor torque > set value;

[0135] (2) D gear & battery current > set value & rear motor torque < set value.

[0136] In other words, when the current gear is reverse (R gear) and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or when the current gear is forward (D gear) and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, it indicates that the current energy flow between the rear motor and the battery segment is from the rear motor to the battery.

[0137] Furthermore, in some embodiments, determining the current energy flow direction of the battery current state, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle further includes: if the engine state is running and the current real-time current value of the battery is less than a fourth preset current value, then the current energy flow direction is from the engine to the battery; if the engine state is starting, then the current energy flow direction is from the battery to the engine.

[0138] The fourth preset current value can be a value set by the user, a value obtained through a limited number of experiments, or a value obtained through a limited number of computer simulations; no specific limitation is made here.

[0139] Specifically, determining the energy flow state between the engine and the battery:

[0140] (1) As Figure 2 As shown in f, when the engine is running and the battery current value is less than the set value, the energy flow from the engine to the battery is displayed, that is, the current energy flow direction between the battery and the engine section is from the engine to the battery.

[0141] (2) Figure 2 As shown in 'g', the engine start status displays the energy flow from the battery to the engine, indicating the current energy flow direction between the battery and the engine.

[0142] Furthermore, in some embodiments, determining the current energy flow direction of the battery current state, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear position of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed, further includes: if the current gear position is forward and the torque value of the front motor is greater than a third preset torque value and the engine state is running, or if the current gear position is reverse and the torque value of the front motor is less than the third preset torque value and the engine state is running, then the current energy flow direction of the engine and front motor segment is from the engine to the front motor.

[0143] The third preset torque value can be a value pre-set by the user, a value obtained through a limited number of experiments, or a value obtained through a limited number of computer simulations; no specific limitation is made here.

[0144] Specifically, determining the energy flow direction between the generator and the front motor, such as... Figure 2 As shown in h, the drive energy flow from the engine to the front motor is displayed if any of the following conditions are met:

[0145] (1) D gear & front motor torque > set value & engine running;

[0146] (2) R gear & front motor torque < set value & engine running.

[0147] In other words, when the current gear is forward (D), the front motor torque value is greater than the third preset torque value, and the engine is in running state, or when the current gear is reverse (R), the front motor torque value is less than the third preset torque value, and the engine is in running state, it indicates that the current energy flow between the engine and the front motor is from the engine to the front motor.

[0148] Furthermore, in some embodiments, determining the current energy flow direction of the battery current state, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear position of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current vehicle speed, further includes: if the current gear position is forward and the torque value of the rear motor is greater than a fourth preset torque value and the engine state is running, or if the current gear position is reverse and the torque value of the rear motor is less than the fourth preset torque value and the engine state is running, then the current energy flow direction of the engine and rear motor segment is from the engine to the rear motor.

[0149] The fourth preset torque value can be a value pre-set by the user, a value obtained through a limited number of experiments, or a value obtained through a limited number of computer simulations; no specific limitation is made here.

[0150] Specifically, determining the energy flow direction between the engine and the rear electric motor, such as Figure 2 As shown in 'i', the drive energy flow from the engine to the rear motor is displayed if any of the following conditions are met:

[0151] (1) D gear & rear motor torque > set value & engine running;

[0152] (2) R gear & rear motor torque < set value & engine running.

[0153] In other words, when the current gear is forward (D), the rear motor torque value is greater than the fourth preset torque value, and the engine is in running state, or when the current gear is reverse (R), the rear motor torque value is less than the fourth preset torque value, and the engine is in running state, it indicates that the current energy flow between the engine and the rear motor is from the engine to the rear motor.

[0154] Furthermore, in some embodiments, determining the current state of the battery, the current energy flow direction of the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle, further includes: if the current gear is a forward gear and the torque value of the front motor is greater than a fifth preset torque value and the current speed is greater than a first preset speed, or if the current gear is a reverse gear and the torque value of the front motor is less than a fifth preset torque value and the current speed is greater than a first preset speed, then the current energy flow direction of the front motor and wheel segment is from the front motor to the wheel end; if the current gear is a forward gear and the torque value of the front motor is less than a fifth preset torque value and the current speed is greater than a preset speed, or if the current gear is a reverse gear and the torque value of the front motor is greater than a fifth preset torque value and the current speed is greater than a preset speed, then the current energy flow direction of the front motor and wheel segment is from the wheel end to the front motor.

[0155] The fifth preset torque value and the first preset vehicle speed can be values ​​preset by the user, values ​​obtained through a limited number of experiments, or values ​​obtained through a limited number of computer simulations, and no specific limitations are imposed here.

[0156] Specifically, the energy flow direction between the front motor and the wheel end is determined, such as... Figure 2As shown in 'l', the energy flow from the front motor to the wheel end is displayed if any of the following conditions are met, i.e., the current energy flow direction between the front motor and the wheel segment is from the front motor to the wheel end:

[0157] (1) D gear & front motor torque > set value & vehicle speed > set value;

[0158] (2) R gear & front motor torque < set value & vehicle speed > set value.

[0159] In other words, when the current gear is forward (D), the front motor torque value is greater than the fifth preset torque value, and the current vehicle speed is greater than the first preset vehicle speed, or when the current gear is reverse (R), the front motor torque value is less than the fifth preset torque value, and the current vehicle speed is greater than the first preset vehicle speed, it indicates that the current energy flow between the front motor and the wheel segment is from the front motor to the wheel end.

[0160] Furthermore, such as Figure 2 As shown in m, the energy flow from the wheel end to the front motor is displayed if any of the following conditions are met: that is, the current energy flow direction between the front motor and the wheel segment is from the wheel end to the front motor.

[0161] (1) D gear & front motor torque < set value & vehicle speed > set value;

[0162] (2) R gear & front motor torque > set value & vehicle speed > set value.

[0163] In other words, when the current gear is forward (D), the front motor torque value is less than the fifth preset torque value, and the current vehicle speed is greater than the preset vehicle speed; or when the current gear is reverse (R), the front motor torque value is greater than the fifth preset torque value, and the current vehicle speed is greater than the preset vehicle speed, it indicates that the current energy flow between the front motor and the wheel segment is from the wheel end to the front motor.

[0164] Furthermore, in some embodiments, determining the current state of the battery, the current energy flow direction of the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear position of the vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle further includes: if the current gear is a forward gear and the torque value of the rear motor is greater than a sixth preset torque value and the current speed of the vehicle is greater than a second preset speed, or if the current gear is a reverse gear and the torque value of the rear motor is less than a sixth preset torque value and the current speed of the vehicle is greater than a second preset speed, then the current energy flow direction of the rear motor and wheel segment is from the rear motor to the wheel end; if the current gear is a forward gear and the torque value of the front motor is less than a sixth preset torque value and the current speed of the vehicle is greater than a second preset speed, or if the current gear is a reverse gear and the torque value of the front motor is greater than a sixth preset torque value and the current speed of the vehicle is greater than a second preset speed, then the current energy flow direction of the rear motor and wheel segment is from the wheel end to the rear motor.

[0165] The sixth preset torque value and the second preset vehicle speed can be values ​​preset by the user, values ​​obtained through a limited number of experiments, or values ​​obtained through a limited number of computer simulations, and no specific limitations are imposed here.

[0166] Specifically, the determination of the energy flow direction between the rear motor and the wheel end, such as... Figure 2 As shown in j, the energy flow from the rear motor to the wheel end is displayed if any of the following conditions are met:

[0167] (1) D gear & rear motor torque > set value & vehicle speed > set value;

[0168] (2) R gear & rear motor torque < set value & vehicle speed > set value.

[0169] In other words, when the current gear is forward (D), the rear motor torque value is greater than the sixth preset torque value, and the current vehicle speed is greater than the second preset vehicle speed; or when the current gear is reverse (R), the rear motor torque value is less than the sixth preset torque value, and the current vehicle speed is greater than the second preset vehicle speed, it indicates that the current energy flow between the rear motor and the wheel segment is from the rear motor to the wheel end.

[0170] Furthermore, such as Figure 2 As shown in k, the energy flow from the wheel end to the rear motor is displayed if any of the following conditions are met: that is, the current energy flow direction between the rear motor and the wheel segment is from the wheel end to the rear motor.

[0171] (1) D gear & rear motor torque < set value & vehicle speed > set value;

[0172] (2) R gear & rear motor torque > set value & vehicle speed > set value.

[0173] In other words, when the current gear is forward (D), the front motor torque value is less than the sixth preset torque value, and the current vehicle speed is greater than the second preset vehicle speed, or when the current gear is reverse (R), the front motor torque value is greater than the sixth preset torque value, and the current vehicle speed is greater than the second preset vehicle speed, it indicates that the current energy flow direction between the rear motor and the wheel segment is from the wheel end to the rear motor.

[0174] Furthermore, in some embodiments, determining the current energy flow direction between the charging port and the battery segment and / or between the charging port and the charging line segment based on the current discharge gun connection status, the current charging gun connection status, and / or the real-time battery current value includes: if the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging line segment is from the charging port to the charging line; if the current discharge gun connection status is disconnected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging line segment is from the charging line to the charging port.

[0175] Understandably, the energy flow direction can also be determined in a segmented manner when the gun is inserted.

[0176] Specifically, the energy flow display between the charging cable and the charging port is as follows:

[0177] (1) As Figure 3 As shown in 'a', the discharge gun connection status is not 'not connected' and the charging gun connection status is 'not connected', displaying charging port → charging cable, which means that the current energy flow direction between the charging port and the charging cable segment is from the charging port to the charging cable.

[0178] (2) Figure 3 As shown in b, the discharge gun connection status is not connected and the charging gun connection status is not not connected. The display shows charging cable → charging port, which means that the current energy flow direction between the charging port and the charging cable segment is from the charging cable to the charging port.

[0179] Furthermore, in some embodiments, determining the current energy flow direction between the charging port and the battery segment and / or between the charging port and the charging line segment based on the current discharge gun connection status, the current charging gun connection status, and / or the real-time battery current value includes: if the real-time battery current value is greater than a fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port; if the real-time battery current value is less than a sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

[0180] The fifth and sixth preset current values ​​can be values ​​preset by the user, values ​​obtained through a limited number of experiments, or values ​​obtained through a limited number of computer simulations; no specific limitations are imposed here.

[0181] For example, in this embodiment of the application, the fifth preset current value is set to 1A and the sixth preset current value is set to -1A. Then, the energy flow between the battery and the charging / discharging port is displayed as follows:

[0182] (1) As Figure 3 As shown in c, when the battery real-time current is >1A (TBD (To Be Decided, to be defined)) and the discharge gun is connected, the display shows battery → charging port, which means that the current energy flow direction between the charging port and the battery segment is from the battery to the charging port.

[0183] (2) Figure 3 As shown in d, when the battery real-time current is <-1A (TBD) and the charging gun is connected, the display shows charging port → battery, which indicates that the current energy flow direction between the charging port and the battery is from the charging port to the battery.

[0184] It should be noted that the first to sixth preset current values ​​mentioned above can be the same or different values, depending on the actual working conditions; the first to sixth preset torque values ​​can be the same or different values, depending on the actual working conditions; the first and second preset vehicle speeds can be the same or different values, depending on the actual working conditions, and no specific limitations are made here.

[0185] In step S103, the energy flow status to be displayed is obtained according to the energy flow rate level corresponding to the current energy flow direction and the real-time current value of the battery, and the energy flow status to be displayed is displayed on the central control display screen of the current vehicle.

[0186] Specifically, this application integrates energy flow direction and energy flow rate on the UI (User Interface), allowing users to vividly and graphically view the vehicle's energy distribution on the vehicle's infotainment system.

[0187] Furthermore, in some embodiments, before obtaining the energy flow state to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time battery current value, the method further includes: identifying the current current level range where the real-time battery current value is located; and obtaining the energy flow rate level corresponding to the real-time battery current value from a preset current level range-flow rate level relationship based on the current current level range.

[0188] Specifically, in this embodiment, the battery current value is divided into N levels. If the current real-time battery current is in the level 1 range, the energy flow rate at the battery end is displayed according to level 1. If the current real-time battery current is in the level 2 range, the energy flow rate at the battery end is displayed according to level 2, and so on. At the same time, the vehicle speed is divided into N levels. If the current vehicle speed is in the level 1 range, the flow rate at the wheel end is displayed according to level 1. If the current vehicle speed is in the level 2 range, the flow rate at the wheel end is displayed according to level 2, and so on.

[0189] Therefore, the embodiments of this application can distinguish the intensity of battery power consumption or the speed of power replenishment, and can more vividly distinguish the vehicle speed by the speed of wheel rotation.

[0190] It should be noted that this method is applicable not only to pure electric, range-extended, and hybrid vehicles, but also to various complex operating conditions.

[0191] According to the energy flow display method for vehicles proposed in this application, by detecting that the current vehicle is in a non-plug-in state, the current energy flow direction is determined based on the current gear position, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed. This includes the current energy flow direction between the battery, front motor and battery, rear motor and battery, battery and engine, engine and front motor, engine and rear motor, front motor and wheel, and / or rear motor and wheel. If the current vehicle is detected to be in a plug-in state, the current energy flow direction between the charging port and battery and / or charging port and charging cable is determined based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value. The energy flow state to be displayed is then shown on the central control display screen of the current vehicle. This solves the problems of cumbersome and space-consuming methods for identifying energy flow direction using enumeration, complex display, difficulty for users to judge, and inconsistencies between the displayed energy flow and the actual situation in complex operating conditions. It is applicable to energy flow judgment in pure electric vehicles, range-extended electric vehicles, and hybrid vehicles.

[0192] Next, the energy flow display device for a vehicle according to an embodiment of this application is described with reference to the accompanying drawings.

[0193] Figure 4 This is a block diagram of a vehicle energy flow display device according to an embodiment of this application.

[0194] like Figure 4 As shown, the energy flow display device 10 of the vehicle includes: a detection module 100, a determination module 200 and a display module 300.

[0195] The detection module 100 is used to detect whether the current vehicle is in the plug-in state;

[0196] The determination module 200 is used to determine the current energy flow direction between the battery, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment, based on the current gear position, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed, if the current vehicle is in a plug-in state; and to determine the current energy flow direction between the charging port and battery segment and / or the charging port and charging cable segment, based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value.

[0197] The display module 300 is used to obtain the energy flow status to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time current value of the battery, and to display the energy flow status to be displayed on the central control display screen of the current vehicle.

[0198] Furthermore, in some embodiments, the determining module 200 is specifically used for:

[0199] If the current real-time current value of the battery is greater than the first preset current value, then the current state of the battery is the battery discharge state.

[0200] If the current real-time current value of the battery is less than or equal to the first preset current value, then the current state of the battery is the charging state.

[0201] If the current gear is forward and the current real-time battery current value is greater than the second preset current value and the front motor torque value is greater than the first preset torque value, or if the current gear is reverse and the current real-time battery current value is greater than the second preset current value and the front motor torque value is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the front motor.

[0202] If the current gear is reverse and the current real-time battery current is greater than the second preset current value and the front motor torque is greater than the first preset torque value, or if the current gear is forward and the current real-time battery current is greater than the second preset current value and the front motor torque is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the front motor to the battery.

[0203] If the current gear is forward and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is greater than the second preset torque value, or if the current gear is reverse and the current real-time battery current value is greater than the third preset current value and the rear motor torque value is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the battery to the rear motor.

[0204] If the current gear is reverse and the current real-time battery current is greater than the third preset current value and the rear motor torque is greater than the second preset torque value, or if the current gear is forward and the current real-time battery current is greater than the third preset current value and the rear motor torque is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the rear motor to the battery.

[0205] Furthermore, in some embodiments, the determining module 200 is also used for:

[0206] If the engine is in operation and the current real-time battery current value is less than the fourth preset current value, then the current energy flow between the battery and the engine section is from the engine to the battery.

[0207] If the engine is in the running state, the current energy flow between the battery and the engine is from the battery to the engine.

[0208] If the current gear is forward and the front motor torque value is greater than the third preset torque value and the engine is running, or if the current gear is reverse and the front motor torque value is less than the third preset torque value and the engine is running, then the current energy flow direction between the engine and the front motor segment is from the engine to the front motor.

[0209] If the current gear is forward and the rear motor torque value is greater than the fourth preset torque value and the engine is in running state, or if the current gear is reverse and the rear motor torque value is less than the fourth preset torque value and the engine is in running state, then the current energy flow direction between the engine and the rear motor is from the engine to the rear motor.

[0210] Furthermore, in some embodiments, the determining module 200 is also used for:

[0211] If the current gear is forward and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, or if the current gear is reverse and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the first preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the front motor to the wheel end.

[0212] If the current gear is forward and the front motor torque value is less than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, or if the current gear is reverse and the front motor torque value is greater than the fifth preset torque value and the current vehicle speed is greater than the preset vehicle speed, then the current energy flow direction between the front motor and the wheel segment is from the wheel end to the front motor.

[0213] If the current gear is forward and the rear motor torque value is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is reverse and the rear motor torque value is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the rear motor to the wheel end.

[0214] If the current gear is forward and the front motor torque value is less than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, or if the current gear is reverse and the front motor torque value is greater than the sixth preset torque value and the current vehicle speed is greater than the second preset vehicle speed, then the current energy flow direction between the rear motor and the wheel segment is from the wheel end to the rear motor.

[0215] Furthermore, in some embodiments, the determining module 200 is specifically used for:

[0216] If the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging cable segment is from the charging port to the charging cable.

[0217] If the current discharge gun connection status is not connected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging cable segment is from the charging cable to the charging port.

[0218] If the real-time current value of the battery is greater than the fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port.

[0219] If the real-time current value of the battery is less than the sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

[0220] Furthermore, in some embodiments, before obtaining the energy flow state to be displayed based on the energy flow rate level corresponding to the current energy flow direction and the real-time battery current value, the display module 300 is also used for:

[0221] Identify the current current level range of the battery's real-time current value;

[0222] Based on the current current level range, the energy flow rate level corresponding to the real-time current value of the battery is obtained from the preset current level range-flow rate level relationship.

[0223] It should be noted that the foregoing explanation of the vehicle energy flow display method embodiment also applies to the vehicle energy flow display device of this embodiment, and will not be repeated here.

[0224] The vehicle energy flow display device proposed in this application, by detecting that the current vehicle is in a non-plug-in state, determines the current energy flow direction of the battery, the front motor and battery segment, the rear motor and battery segment, the battery and engine segment, the engine and front motor segment, the engine and rear motor segment, the front motor and wheel segment, and / or the rear motor and wheel segment based on the current gear position, real-time battery current value, front motor torque value, rear motor torque value, current engine state, and / or current vehicle speed. If the current vehicle is detected to be in a plug-in state, the current energy flow direction of the charging port and battery segment and / or the charging port and charging cable segment is determined based on the current discharge gun connection state, current charging gun connection state, and / or real-time battery current value, and the energy flow state to be displayed is displayed on the central control display screen of the current vehicle. This solves the problems of using enumeration to identify the energy flow direction being too cumbersome, space-consuming, complex to display, difficult for users to judge, and inconsistent energy flow display with actual conditions in complex operating conditions. It can be applied to energy flow judgment of pure electric vehicles, range-extended electric vehicles, and hybrid vehicles.

[0225] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0226] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0227] When processor 502 executes the program, it implements the vehicle energy flow display method provided in the above embodiments.

[0228] Furthermore, the vehicle also includes:

[0229] Communication interface 503 is used for communication between memory 501 and processor 502.

[0230] The memory 501 is used to store computer programs that can run on the processor 502.

[0231] The memory 501 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0232] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0233] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0234] Processor 502 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0235] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described vehicle energy flow display method.

[0236] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0237] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0238] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0239] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0240] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0241] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for displaying the energy flow of a vehicle, characterized in that, Includes the following steps: Check if the current vehicle is in the plug-in state; If the current vehicle is not in a plug-in state, then the current energy flow direction of at least one of the following is determined based on the current gear of the current vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and the current vehicle speed: the current state of the battery, the current energy flow direction of the front motor and the battery segment, the current energy flow direction of the rear motor and the battery segment, the current energy flow direction of the battery segment, the current energy flow direction of the front motor and the rear motor segment, the current energy flow direction of the front motor and the wheel segment, and the current energy flow direction of the rear motor and the wheel segment. If the current vehicle is in a plug-in state, then the current energy flow direction of at least one of the following is determined based on the current discharge gun connection state, the current charging gun connection state, and the real-time current value of the battery: the current energy flow direction of the discharge gun and the battery segment, and the current energy flow direction of the charging port and the charging cable segment. as well as The energy flow status to be displayed is obtained based on the current energy flow direction and the energy flow rate level corresponding to the real-time current value of the battery, and the energy flow status to be displayed is displayed on the central control display screen of the current vehicle. The step of determining the current energy flow direction of the battery, the front motor and the battery segment, the rear motor and the battery segment, the battery and the engine segment, the engine and the front motor segment, the engine and the rear motor segment, the front motor and the wheel segment, and / or the rear motor and the wheel segment based on at least one of the current gear position of the current vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and the current vehicle speed includes: If the real-time current value of the battery is greater than the first preset current value, then the current state of the battery is the battery discharge state. If the real-time current value of the battery is less than or equal to the first preset current value, then the current state of the battery is the battery charging state. If the current gear is forward and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is reverse and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the front motor. If the current gear is reverse and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is forward and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the front motor to the battery. If the current gear is forward and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is greater than the second preset torque value, or if the current gear is reverse and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the battery to the rear motor. If the current gear is the reverse gear and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is greater than the second preset torque value, or if the current gear is the forward gear and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the rear motor to the battery.

2. The method according to claim 1, characterized in that, The method of determining the current state of the battery, the current energy flow direction between the front motor and the battery segment, the current energy flow direction between the rear motor and the engine segment, the current energy flow direction between the front motor and the wheel segment, and / or the current energy flow direction between the front motor and the wheel segment, based on the current gear position of the current vehicle, the real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and / or the current speed of the vehicle, also includes: If the engine is in a running state and the real-time current value of the battery is less than the fourth preset current value, then the current energy flow direction between the battery and the engine section is from the engine to the battery. If the engine is in the start state, the current energy flow between the battery and the engine section is from the battery to the engine. If the current gear is the forward gear and the front motor torque value is greater than the third preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the front motor torque value is less than the third preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the front motor segment is from the engine to the front motor. If the current gear is the forward gear and the rear motor torque value is greater than the fourth preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the rear motor torque value is less than the fourth preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the rear motor segment is from the engine to the rear motor.

3. The method according to claim 1, characterized in that, The step of determining the current energy flow direction between the charging port and the battery segment and / or between the charging port and the charging line segment based on the current discharge gun connection status, the current charging gun connection status, and / or the real-time battery current value includes: If the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging line segment is from the charging port to the charging line. If the current discharge gun connection status is not connected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging line segment is from the charging line to the charging port. If the real-time current value of the battery is greater than the fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port. If the real-time current value of the battery is less than the sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

4. The method according to claim 1, characterized in that, Before obtaining the energy flow state to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time battery current value, the process further includes: Identify the current current level range in which the real-time current value of the battery is located; The energy flow rate level corresponding to the real-time current value of the battery is obtained from the preset current level range-flow rate level relationship based on the current current level range.

5. A vehicle energy flow display device, characterized in that, include: The detection module is used to detect whether the current vehicle is in the plug-in state; The determination module is used to determine the current energy flow direction of at least one of the following if the current vehicle is not in a plug-in state: the current state of the battery, the current energy flow direction of the front motor and the battery segment, the current energy flow direction of the rear motor and the engine segment, the current energy flow direction of the front motor and the rear motor segment, the current energy flow direction of the front motor and the wheel segment, and the current energy flow direction of the charging port and the battery segment, based on at least one of the following: the current gear of the current vehicle, the current real-time current value of the battery, the torque value of the front motor, the torque value of the rear motor, the current state of the engine, and the current vehicle speed. If the current vehicle is in a plug-in state, the module determines the current energy flow direction of the charging port and the battery segment, and the current energy flow direction of the charging cable segment, based on at least one of the following: the current discharge gun connection state, the current charging gun connection state, and the current real-time current value of the battery. as well as The display module is used to obtain the energy flow status to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time current value of the battery, and to display the energy flow status to be displayed on the central control display screen of the current vehicle. The determining module is specifically used for: If the real-time current value of the battery is greater than the first preset current value, then the current state of the battery is the battery discharge state. If the real-time current value of the battery is less than or equal to the first preset current value, then the current state of the battery is the battery charging state. If the current gear is forward and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is reverse and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the battery to the front motor. If the current gear is reverse and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is greater than the first preset torque value, or if the current gear is forward and the real-time current value of the battery is greater than the second preset current value and the torque value of the front motor is less than or equal to the first preset torque value, then the current energy flow direction between the front motor and the battery segment is from the front motor to the battery. If the current gear is forward and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is greater than the second preset torque value, or if the current gear is reverse and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the battery to the rear motor. If the current gear is the reverse gear and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is greater than the second preset torque value, or if the current gear is the forward gear and the real-time current value of the battery is greater than the third preset current value and the torque value of the rear motor is less than or equal to the second preset torque value, then the current energy flow direction between the rear motor and the battery segment is from the rear motor to the battery.

6. The apparatus according to claim 5, characterized in that, The determining module is further configured to: If the engine is in a running state and the real-time current value of the battery is less than the fourth preset current value, then the current energy flow direction between the battery and the engine section is from the engine to the battery. If the engine is in the start state, the current energy flow between the battery and the engine section is from the battery to the engine. If the current gear is the forward gear and the front motor torque value is greater than the third preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the front motor torque value is less than the third preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the front motor segment is from the engine to the front motor. If the current gear is the forward gear and the rear motor torque value is greater than the fourth preset torque value and the engine state is the running state, or if the current gear is the reverse gear and the rear motor torque value is less than the fourth preset torque value and the engine state is the running state, then the current energy flow direction between the engine and the rear motor segment is from the engine to the rear motor.

7. The apparatus according to claim 5, characterized in that, The determining module is specifically used for: If the current discharge gun connection status is connected and the current charging gun connection status is disconnected, then the current energy flow direction between the charging port and the charging line segment is from the charging port to the charging line. If the current discharge gun connection status is not connected and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the charging line segment is from the charging line to the charging port. If the real-time current value of the battery is greater than the fifth preset current value and the current discharge gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the battery to the charging port. If the real-time current value of the battery is less than the sixth preset current value and the current charging gun connection status is connected, then the current energy flow direction between the charging port and the battery segment is from the charging port to the battery.

8. The apparatus according to claim 5, characterized in that, Before obtaining the energy flow state to be displayed based on the current energy flow direction and the energy flow rate level corresponding to the real-time battery current value, the display module is further configured to: Identify the current current level range in which the real-time current value of the battery is located; The energy flow rate level corresponding to the real-time current value of the battery is obtained from the preset current level range-flow rate level relationship based on the current current level range.

9. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the energy flow display method for a vehicle as described in any one of claims 1-4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the energy flow display method for a vehicle as described in any one of claims 1-4.

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