New energy vehicle electrical equipment power supply control setting system and method and medium

Abstract

The present invention discloses a power control setting system for electric equipment of new energy vehicles, wherein the power consumption list establishment module is used to establish a summary table of information and current data of electric equipment of power system of new energy vehicles; the working condition setting module is used to form a summary table of working conditions of whole vehicle of new energy vehicles; the energy-saving mode setting module is used to define the opening or power-off of electric equipment of power system of target new energy vehicles under various working conditions; the power control hardware upgrade design module is used to respectively carry out circuit design of installing relays on electric equipment of power system in target new energy vehicles; the power control program creation module is used to create corresponding power control program according to the definition of opening or power-off of electric equipment of power system of target new energy vehicles under various working conditions in combination with the execution conditions of opening or power-off of electric equipment of power system. The present invention can optimize both the announced and actual energy consumption of whole vehicle of electric vehicles, and is also conducive to reducing the difference between announced cruising range and actual cruising range.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a system and method for controlling and setting power supply of electric equipment in new energy vehicles, and a medium. Background Art

[0002] With the rapid development of new energy vehicles, the penetration rate of new energy in new cars and the number of vehicles in use has been rising steadily. As a result, the country's development of new energy vehicles has shifted from simply promoting the electrification process to high-quality development, and the core indicator of high-quality development is energy consumption, and latecomers will pay high compliance costs for this. At the same time, the price of battery raw materials has continued to rise in recent years, causing raw material companies, battery companies, and vehicle companies to "hand in hand" push the prices of new energy products to rise steadily. Therefore, reducing energy consumption to control the power consumption for the same driving range is an effective technical path to reduce vehicle costs and enhance product competitiveness. In summary, the energy consumption of electric vehicles will become a core performance indicator that affects corporate operations and product competitiveness at this stage and in the future.

[0003] For electric vehicles, energy consumption optimization is mainly concentrated in three aspects. The first is the energy consumption required at the wheel side, which is determined by the sliding resistance and weight of the vehicle. The second is the efficiency of the electric drive assembly, which is determined by the motor efficiency, electronic control efficiency and reduction gearbox efficiency. The third is various high-voltage electrical appliances (these electrical appliances do not include motors, the same below, high voltage refers to voltage >300V, the same below). The first two have always received much attention, and the third point has not been given enough attention. As electric vehicles become more and more intelligent, the impact of the third point on the energy consumption of electric vehicles will gradually increase. Therefore, how to control various high-voltage electrical appliances so that the power consumption of electrical appliances during vehicle operation is lower to achieve a better energy consumption level has become a key and difficult point in the development of electric vehicle energy consumption, which directly determines the controllable degree of risk of vehicle performance development of this type of vehicle.

[0004] The existing energy consumption optimization methods for electric vehicles do not include the start-stop control of the high-voltage system. The existing technology of vehicle energy consumption optimization mainly focuses on the wheel side demand and the efficiency of the electric drive assembly. The wheel side demand is determined by the vehicle's sliding resistance and weight, and the efficiency of the electric drive assembly is determined by the motor efficiency, electronic control efficiency and reduction box efficiency. The high-voltage power consumption is not given enough attention. Summary of the invention

[0005] The purpose of the present invention is to provide a power control setting system, method and medium for electrical equipment in new energy vehicles. The present invention can optimize the announced and actual energy consumption of the entire electric vehicle to a certain extent, and at the same time is conducive to narrowing the difference between the announced endurance and the actual endurance, so as to adapt to the current and future high-quality development needs of electric vehicles and improve product performance and quality.

[0006] To achieve this purpose, the power control setting system for electric equipment of new energy vehicles designed by the present invention is characterized in that it includes a power consumption list establishment module, a working condition setting module, an energy-saving mode setting module, a power control hardware upgrade design module and a power control program creation module;

[0007] The electricity consumption list establishment module is used to count the power system power equipment of the target new energy vehicle and establish a summary table of the power system power equipment information and current data of the new energy vehicle;

[0008] The operating condition setting module is used to set various operating conditions of the target new energy vehicle according to compliance certification and user scenario requirements, and form a summary table of the operating conditions of the whole new energy vehicle;

[0009] The energy-saving mode setting module is used to define the opening or power-off of the power system electrical equipment of the target new energy vehicle under various working conditions based on the national standards for new energy vehicles and / or the enterprise standards for new energy vehicles and / or the driving needs of users, and in combination with the summary table of the power system electrical equipment information and current data of the new energy vehicle and the summary table of the whole vehicle working conditions of the new energy vehicle;

[0010] The power control hardware upgrade design module is used to design the circuits for adding relays to the power system electrical equipment in the target new energy vehicle, so that the power system electrical equipment can be individually controlled to turn on or off by the corresponding relays;

[0011] The power control program creation module is used to create a corresponding power control program according to the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions and the execution conditions of turning on or off the power system electrical equipment. The relays of the power system electrical equipment can be turned on or off by the power control program.

[0012] Beneficial effects of the present invention:

[0013] The present invention utilizes relays and software control logic to realize the start and power-off control of high-voltage power-consuming components of new energy vehicles. The present invention manages and optimizes the energy consumption of the power supply system according to the whole vehicle working condition and user scenarios. For example, when parking, the high-voltage system of the electric vehicle can be powered off to reduce energy consumption by referring to traditional energy vehicles. Similarly, different optimization ideas can be applied to different user scenarios to achieve the best energy consumption effect of the whole vehicle, thereby improving the difference between actual cruising range and announced cruising range, and comprehensively improving the competitiveness of electric vehicle products and user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural block diagram of the present invention; DETAILED DESCRIPTION

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] like Figure 1 The power control setting system for electric equipment of new energy vehicles is characterized in that it includes a power consumption list establishment module, a working condition setting module, an energy-saving mode setting module, a power control hardware upgrade design module and a power control program creation module;

[0017] The electricity consumption list establishment module is used to count the power system electrical equipment of the target new energy vehicle and establish a summary table of the power system electrical equipment information and current data of the new energy vehicle, as shown in Table 1;

[0018] The operating condition setting module is used to set various operating conditions of the target new energy vehicle according to compliance certification and user scenario requirements, and form a new energy vehicle whole vehicle operating condition summary table, as shown in Table 2;

[0019] The energy-saving mode setting module is used to define the opening or power-off of the power system electrical equipment of the target new energy vehicle under various working conditions based on the national standard for new energy vehicles and / or the enterprise standard for new energy vehicles and / or the driving needs of users, and in combination with the summary table of the power system electrical equipment information and current data of the new energy vehicle and the summary table of the whole vehicle working condition of the new energy vehicle, as shown in Table 3;

[0020] The power control hardware upgrade design module is used to design the circuits for adding relays to the power system electrical equipment in the target new energy vehicle, so that the power system electrical equipment can be individually controlled to turn on or off by the corresponding relays;

[0021] The power control program creation module is used to create a corresponding power control program according to the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions and the execution conditions of turning on or off the power system electrical equipment. The relays of the power system electrical equipment can be turned on or off by the power control program.

[0022] In the above technical solution, the new energy vehicle electrical equipment information and current data summary table includes power system electrical equipment information, current information and configuration information, wherein the current information includes the rated current, working current and sleep current of the corresponding power system electrical equipment, and the electrical equipment information includes the system category, electrical equipment name and electrical equipment abbreviation, as shown in Table 1:

[0023] Table 1 Summary of electrical equipment information and current data for new energy vehicles

[0024]

[0025] In Table 1, E1, E2, and E3 represent vehicle levels or configurations, which can be understood as mid-range, low-range, and high-range. Vehicles with different configurations may have different electrical components and numbers. The corresponding numbers under E1, E2, and E3 represent the number of electrical devices.

[0026] For the list of high-voltage electrical appliances, after completing their classification and statistics, it is best to sort and count them according to the current size, and be able to collect or complete special tests to clarify the rated current, working current, sleep current and other related information during the period of high power consumption, laying the foundation for the subsequent conception and evaluation of energy-saving modes.

[0027] Table 2 Summary of new energy vehicle operating conditions

[0028]

[0029] Table 3 Summary of definitions of electrical equipment for new energy vehicles based on vehicle operating conditions

[0030]

[0031] In the above technical solution, the power control program determines whether the power system electrical equipment is turned on or off according to the selected working conditions combined with the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions, and controls the relay of the power system electrical equipment to turn on or off in combination with the execution conditions for turning on or off the power system electrical equipment.

[0032] In the above technical solution, when the power control program determines that the power system electrical equipment is turned on according to the selected working condition combined with the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions, and the execution conditions for turning on the power system electrical equipment are met, the power control program controls the relay of the power system electrical equipment to turn on.

[0033] In the above technical solution, when the power control program determines that the power system electrical equipment is powered off based on the selected operating condition combined with the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various operating conditions, and the execution conditions for powering off the power system electrical equipment are met, the power control program performs power-off control on the relay of the power system electrical equipment.

[0034] In the above technical solution, the execution conditions for powering off the power system electrical equipment are:

[0035] All of the following prerequisites must be met at the same time: Prerequisite 1: There is no fault in the start-stop system (prioritize response to factors that prohibit shutdown due to faults), Prerequisite 2: The electronic control unit allows shutdown (whether the electronic control logic allows it), Prerequisite 3: Brake vacuum pressure ≥ safety value (to prevent insufficient braking assistance for parking mechanism), Prerequisite 4: Vehicle speed ≤ set value (to prevent shutdown due to excessive speed and vehicle loss of control), Prerequisite 5: Seat belts are fastened (for safety reasons), Prerequisite 6: Battery power ≥ set value (to prevent insufficient power supply), Prerequisite 7: The ignition key is in the ON position, Prerequisite 8: The driving mode function switch button is in the economic mode state (confirm that the user chooses to turn on the lower high pressure function, including ECO, sport, normal and other driving modes), premise 9, the shortest running time of the power system (how long the power system must run at least after it is turned on before it can be turned off) ≥ the set value, avoid frequent starting and shutting down, premise 10, the gear lever (PNDR gear) is in neutral, premise 11, the air conditioning start request signal is turned off (for comfort considerations), premise 12, the defrost and defogger switch is turned off (for safety and comfort considerations), premise 13, the accelerator pedal opening is released, premise 14, the number of starts and stops of the original underground high voltage (300-800V) ≤ the set value (to determine whether it is a traffic jam condition), as shown in Table 4.

[0036] Table 4 High voltage system power-off control logic

[0037]

[0038]

[0039] In the above technical solution, the execution conditions for starting the power system electrical equipment are: premises 01 to 09 need to be met at the same time, and any one of premises 010 to 018 is met, premise 01, there is no fault affecting the start (priority response to factors that prohibit starting due to faults), premise 02, the ignition key is in the ON position (operating state), premise 03, the ECO OFF switch button is in the economic mode (driving operation), premise 04, the engine hood is closed (to avoid safety hazards during maintenance), premise 05, the first start of the motor is completed, premise 06, the motor is in the shutdown state, premise 07, the MCU allows the power system (motor) to start (for motor safety considerations), premise 08, the number of continuous power-off and connection failures of the power system high voltage is ≤ the set value, premise 09, the interval time of continuous power-off and connection of high voltage is ≥ the set value (multiple high voltage power-off and connection failures are considered for safety protection factors);

[0040] Premise 010, throttle opening ≥ set value (driving intention consideration), Premise 011, brake vacuum pressure sensor fault (fault occurs and the engine needs to be started immediately to avoid danger), Premise 012, battery voltage ≤ set value (meeting the vehicle's power demand), Premise 013, brake vacuum pressure ≤ set value (meeting normal brake vacuum pressure consideration), Premise 014, vehicle speed ≥ set value, Premise 015, ECO mode switched to normal or sport mode (driving intention and design principle consideration), Premise 016, air conditioning request signal turned on (comfort consideration), Premise 017, defrost and defogger switch turned on (safety and comfort consideration), Premise 018, driving gear N to D or R, as shown in Table 5.

[0041] Table 5 Execution conditions for starting power system electrical equipment

[0042]

[0043] In the above technical solution, the operating conditions include NEDC conditions, CLTC conditions, WLTC conditions, parking conditions, normal temperature city congestion conditions, high temperature city congestion conditions, low temperature city congestion conditions, expressway constant speed conditions and highway constant speed conditions.

[0044] A power control setting system for electric equipment of a new energy vehicle comprises the following steps:

[0045] Step 1: Count the power system electrical equipment of the target new energy vehicle and establish a summary table of the power system electrical equipment information and current data of the new energy vehicle;

[0046] Step 2: Set various operating conditions of the target new energy vehicle according to compliance certification and user scenario requirements, and form a summary table of the new energy vehicle's operating conditions;

[0047] Step 3: Based on the national standards for new energy vehicles and / or the enterprise standards for new energy vehicles and / or the driving needs of users, and in combination with the summary table of power system electrical equipment information and current data of new energy vehicles and the summary table of vehicle operating conditions of new energy vehicles, define the opening or power-off of power system electrical equipment of the target new energy vehicle under various operating conditions;

[0048] Step 4: Design circuits for adding relays to the power system electrical equipment in the target new energy vehicle, so that the power system electrical equipment can be individually controlled to turn on or off by the corresponding relays;

[0049] Step 5: Create a corresponding power control program based on the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions and the execution conditions of turning on or off the power system electrical equipment. The relay of the power system electrical equipment can be turned on or off by the power control program.

[0050] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0051] The following method is used to conduct test acceptance evaluation based on the whole vehicle working condition. The energy consumption change of the whole vehicle before and after the high-voltage power-consuming components are controlled in the whole vehicle environment is obtained. At this time, external measuring equipment is needed. It is recommended to complete it on the whole vehicle hub. The vehicle completes the operation under the characteristic working conditions (NEDC, WLTC, CLTC). The power analyzer is used to measure the charge and discharge of the two energy storage devices, the power battery and the power storage capacity. Finally, the electric energy change of the energy storage device under the comprehensive working conditions of the whole vehicle is obtained. Combined with the vehicle running mileage under the comprehensive working conditions, the energy consumption change of the high-voltage power-consuming components can be obtained, and the application effect of the technical solution is evaluated based on this difference.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A power control setting system for electric equipment of new energy vehicles, characterized in that: It includes a power consumption list establishment module, a working condition setting module, an energy-saving mode setting module, a power control hardware upgrade design module and a power control program creation module; The electricity consumption list establishment module is used to count the power system electrical equipment of the target new energy vehicle and establish a summary table of the power system electrical equipment information and current data of the new energy vehicle; The operating condition setting module is used to set various operating conditions of the target new energy vehicle according to compliance certification and user scenario requirements, and form a summary table of the operating conditions of the whole new energy vehicle; The energy-saving mode setting module is used to define the opening or power-off of the power system electrical equipment of the target new energy vehicle under various working conditions based on the national standards for new energy vehicles and / or the enterprise standards for new energy vehicles and / or the driving needs of users, and in combination with the summary table of the power system electrical equipment information and current data of the new energy vehicle and the summary table of the whole vehicle working conditions of the new energy vehicle; The power control hardware upgrade design module is used to design the circuits for adding relays to the power system electrical equipment in the target new energy vehicle, so that the power system electrical equipment can be individually controlled to turn on or off by the corresponding relays; The power control program creation module is used to create a corresponding power control program according to the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions and the execution conditions of turning on or off the power system electrical equipment. The relay of the power system electrical equipment can be turned on or off by the power control program. The execution conditions for power system electrical equipment power outage are: All the following prerequisites must be met at the same time: Prerequisite 1: There is no fault in the start-stop system; Prerequisite 2: The electronic control unit is allowed to shut down; Prerequisite 3: The brake vacuum pressure ≥ the safety value; Prerequisite 4: The vehicle speed ≤ the set value; Prerequisite 5: The seat belt is fastened; Prerequisite 6: The battery power ≥ the set value; Prerequisite 7: The ignition key is in the ON position; Prerequisite 8: The driving mode function switch button is in the economic mode; Prerequisite 9: The shortest operating time of the power system ≥ the set value; Prerequisite 10: The gear lever is in neutral; Prerequisite 11: The air conditioning start request signal is turned off; Prerequisite 12: The defrost and defogger switch is turned off; Prerequisite 13: The accelerator pedal opening is released; Prerequisite 14: The number of original underground high-pressure start-stop times ≤ the set value.

2. The power control setting system for electric equipment of new energy vehicles according to claim 1 is characterized in that: The new energy vehicle electrical equipment information and current data summary table includes power system electrical equipment information, current information and configuration information, wherein the current information includes the rated current, operating current and sleep current of the corresponding power system electrical equipment.

3. The power control setting system for electric equipment of new energy vehicles according to claim 1 is characterized in that: The power control program determines whether the power system electrical equipment is turned on or off according to the selected working conditions combined with the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions, and controls the relay of the power system electrical equipment to turn on or off in combination with the execution conditions of turning on or off the power system electrical equipment.

4. The power control setting system for electric equipment of new energy vehicles according to claim 3 is characterized in that: In the power control program, when the power system electrical equipment is judged to be turned on according to the selected working condition combined with the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions, and the execution conditions for turning on the power system electrical equipment are met, the power control program controls the relay of the power system electrical equipment to turn on.

5. The power control setting system for electric equipment of new energy vehicles according to claim 3 is characterized in that: In the power control program, when it is judged in accordance with the selected working condition and the definition of starting or shutting down the power system electrical equipment of the target new energy vehicle under various working conditions that the power system electrical equipment is powered off, and the execution conditions for powering off the power system electrical equipment are met, the power control program performs power-off control on the relay of the power system electrical equipment.

6. The power control setting system for electric equipment of new energy vehicles according to claim 3 is characterized in that: The execution conditions for starting the power system electrical equipment are: premises 01 to 09 need to be met at the same time, and any one of premises 010 to 018 is met, premise 01, there is no fault that affects starting, premise 02, the ignition key is in the ON position, premise 03, the ECO OFF switch button is in the economic mode, premise 04, the engine hood is closed, premise 05, the first start of the motor is completed, premise 06, the motor is in the shutdown state, premise 07, the MCU allows the power system to start, premise 08, the number of consecutive power-off and connection failures of the power system high voltage is ≤ the set value, premise 09, the interval time of consecutive power-off and connection of the high voltage is ≥ the set value; Premise 010, throttle opening ≥ set value, Premise 011, brake vacuum pressure sensor fault, Premise 012, battery voltage ≤ set value, Premise 013, brake vacuum pressure ≤ set value, Premise 014, vehicle speed ≥ set value, Premise 015, ECO mode switched to normal or sport mode, Premise 016, air conditioning request signal turned on, Premise 017, defrost and defogger switch turned on, Premise 018, driving gear changed from N to D or R.

7. The power control setting system for electric equipment of new energy vehicles according to claim 1 is characterized in that: The operating conditions include NEDC conditions, CLTC conditions, WLTC conditions, parking conditions, normal temperature city congestion conditions, high temperature city congestion conditions, low temperature city congestion conditions, expressway constant speed conditions and highway constant speed conditions.

8. A method for setting power control of electric equipment in new energy vehicles, characterized in that: It includes the following steps: Step 1: Count the power system electrical equipment of the target new energy vehicle and establish a summary table of the power system electrical equipment information and current data of the new energy vehicle; Step 2: Set various operating conditions of the target new energy vehicle according to compliance certification and user scenario requirements, and form a summary table of the new energy vehicle's operating conditions; Step 3: Based on the national standards for new energy vehicles and / or the enterprise standards for new energy vehicles and / or the driving needs of users, and in combination with the summary table of power system electrical equipment information and current data of new energy vehicles and the summary table of vehicle operating conditions of new energy vehicles, define the opening or power-off of power system electrical equipment of the target new energy vehicle under various operating conditions; Step 4: Design circuits for adding relays to the power system electrical equipment in the target new energy vehicle, so that the power system electrical equipment can be individually controlled to turn on or off by the corresponding relays; Step 5: Create a corresponding power control program according to the definition of turning on or off the power system electrical equipment of the target new energy vehicle under various working conditions and the execution conditions of turning on or off the power system electrical equipment, and the relay of the power system electrical equipment can be turned on or off by the power control program; The execution conditions for power system electrical equipment power outage are: All the following prerequisites must be met at the same time: Prerequisite 1: There is no fault in the start-stop system; Prerequisite 2: The electronic control unit is allowed to shut down; Prerequisite 3: The brake vacuum pressure ≥ the safety value; Prerequisite 4: The vehicle speed ≤ the set value; Prerequisite 5: The seat belt is fastened; Prerequisite 6: The battery power ≥ the set value; Prerequisite 7: The ignition key is in the ON position; Prerequisite 8: The driving mode function switch button is in the economic mode; Prerequisite 9: The shortest operating time of the power system ≥ the set value; Prerequisite 10: The gear lever is in neutral; Prerequisite 11: The air conditioning start request signal is turned off; Prerequisite 12: The defrost and defogger switch is turned off; Prerequisite 13: The accelerator pedal opening is released; Prerequisite 14: The number of original underground high-pressure start-stop times ≤ the set value.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to claim 8 are implemented.

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