All-in-one power domain control system and control method for new energy automobile

Abstract

The invention belongs to the technical field of new energy vehicles, and particularly relates to an all-in-one power domain control system and method for a new energy vehicle. A thermal management module and / or a refueling door module and / or a traction motor control module and / or an integrated starter configured to control the temperature of an engine management module and / or an automatic transmission electronic control module and / or a shift control module and / or a hybrid vehicle control module and / or an air conditioning module and / or a battery and an electric motor the power generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the quick charging module execute corresponding functions, so that each functional module in the new energy automobile is directly and electrically connected with the main control module, and each functional module can directly send detected parameter data to the main control module; the delay caused by step-by-step data transmission is avoided, and the main control module can immediately feed back a corresponding control signal according to the obtained parameter data.

Description

Technical Field

[0001] The present invention belongs to the field of new energy vehicle technology, specifically to the field of new energy vehicle control technology, and in particular to an all-in-one power domain control system and control method for new energy vehicles. Background Art

[0002] In existing new energy vehicles, data transmission is carried out step by step. After each system module is divided into different levels, when data is detected that needs to be controlled, each system module needs to communicate with the main control module step by step according to the level to transmit data, resulting in slower data transmission. Even after the lower-level system module detects the data, it still needs to transmit the data after the higher-level system module, resulting in delays in data transmission and corresponding delays in the vehicle's execution components.

[0003] Therefore, due to the technical problem of data transmission delay caused by the step-by-step data transmission between each system module and the main control module, it is necessary to design an all-in-one power domain control system and control method for new energy vehicles.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide an all-in-one power domain control system and control method for new energy vehicles.

[0006] In a first aspect, the embodiments of the present disclosure provide an all-in-one power domain control system for a new energy vehicle, including: A main control module, and a plurality of functional modules electrically connected to the main control module; The functional modules at least include: an engine management module, an automatic transmission electronic control module, a shift control module, a hybrid vehicle control module, an air conditioning module, a thermal management module for battery and motor temperature, a refueling door module, a traction motor control module, an integrated starter generator control module, a DC to DC converter module, a slow charging module and a fast charging module; The main control module and each of the functional modules are arranged on a circuit board, and the main control module is configured to control the engine management module and / or the automatic transmission electronic control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module for the battery and motor temperature and / or the refueling door module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC to DC converter module and / or the slow charging module and / or the fast charging module to perform corresponding functions.

[0007] In an optional embodiment, the engine management module includes: a first sub-control module; The first sub-control module is electrically connected to the main control module, and the first sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The first sub-control module is electrically connected to an engine oil pump control valve, an electronic throttle body, an ignition coil, a pottery solenoid valve, an intake camshaft phaser solenoid valve electromagnet and an exhaust camshaft phaser solenoid valve electromagnet; The engine oil pump control valve, whose circuit includes a corresponding power chip, a MOSFET and a pull-up power supply, when the corresponding power chip applies an electrical signal to the corresponding MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the engine oil pump control valve to open; The electronic throttle body obtains an electrical signal receivable by the first sub-control module through a pull-up power supply and a current-limiting resistor; The ignition coil is composed of a transformer and MOSFET based on the principle of electromagnetic induction. The power chip starts and stops the ignition coil by controlling the switch of the MOSFET. The ceramic pot solenoid valve is controlled on and off based on the power chip; The intake camshaft phase modulator solenoid valve electromagnet, whose circuit is composed of a corresponding power chip, a MOSFET and a pull-up power supply. When the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the intake camshaft phase modulator solenoid valve electromagnet to open; The exhaust camshaft phase modulator solenoid valve electromagnet, its circuit is composed of a corresponding power chip, a MOSFET and a pull-up power supply. When the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the exhaust camshaft phase modulator solenoid valve electromagnet to open.

[0008] In an optional implementation, the automatic transmission electronic control module includes: a second sub-control module; The second sub-control module is electrically connected to the main control module, and the second sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The second sub-control module is electrically connected to a clutch position sensor, a clutch pressure sensor and a clutch solenoid valve; The clutch position sensor obtains an electrical signal receivable by the second sub-control module through a corresponding pull-up power supply and a current-limiting resistor; The clutch pressure sensor obtains an electrical signal receivable by the second sub-control module through a corresponding pull-up power supply and a current-limiting resistor; The clutch solenoid valve is controlled by a power chip that outputs a PWM signal.

[0009] In an optional implementation, the shift control module includes: a third sub-control module; The third sub-control module is electrically connected to the main control module, and the third sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The third sub-control module is electrically connected to the P gear button and the hand gear lever; The P gear button is configured with different voltage-dividing resistors based on the pressed and released states, and the electrical signal of the corresponding state is sent to the third sub-control module and / or the main control module for judgment through the sampling circuit; The hand-held shift lever obtains the gear position information operated by the user based on the Hall sensor, and sends it to the third sub-control module and / or the main control module in the form of PWM.

[0010] In an optional implementation, the hybrid vehicle control module includes: a fourth sub-control module; The fourth sub-control module is electrically connected to the main control module, and the fourth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The fourth sub-control module is electrically connected to an accelerator pedal and a brake pedal; The accelerator pedal transmits corresponding electrical signals to the main control module and / or the fourth sub-control module through an internal sensor to obtain the current acceleration state of the vehicle; The brake pedal detects the intensity of magnetic flux density based on the Hall back magnetism principle, generates two switch signals, which are then converted into high and low level signals by the processing circuit and transmitted to the main control module and / or the fourth sub-control module; The refueling door module includes: a seventh sub-control module; The seventh sub-control module is electrically connected to the main control module, and the seventh sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The seventh sub-control module is electrically connected to a refueling door position sensor, and the refueling door position sensor is suitable for detecting an electrical signal of a refueling door position and sending the signal to the main control module.

[0011] In an optional implementation, the air conditioning module includes: a fifth sub-control module; The fifth sub-control module is electrically connected to the main control module, and the fifth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The fifth sub-control module is electrically connected to the electromagnetic expansion valve and the low-temperature radiator water pump; The electromagnetic expansion valve includes a corresponding coil and a diode, and the electromagnetic force generated by excitation drives the valve core to move to open or close, and the control of the evaporator pressure is realized by the corresponding driver chip; The low-temperature radiator water pump is used to drive the coolant to flow in the cooling circuit at a preset flow rate, and its driving method is implemented by a corresponding driving chip.

[0012] In an optional embodiment, the thermal management module for the battery and motor temperature includes: a sixth sub-control module; The sixth sub-control module is electrically connected to the main control module, and the sixth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The sixth sub-control module is electrically connected to a thermal management ball valve, and the sixth sub-control module is configured to control the opening and closing of a main coolant valve installed on the engine through the thermal management ball valve.

[0013] In an optional implementation, the traction motor control module includes: an eighth sub-control module; The eighth sub-control module is electrically connected to the main control module, and the eighth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The eighth sub-control module is electrically connected to a first three-phase full-bridge inverter unit, wherein the first three-phase full-bridge inverter unit realizes corresponding conversion of a DC power supply by controlling six switches based on alternating conduction of switch elements to drive a corresponding traction motor; The integrated starter generator control module includes: a ninth sub-control module; The ninth sub-control module is electrically connected to the main control module, and the ninth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The ninth sub-control module is electrically connected to a second three-phase full-bridge inverter unit, which is based on the alternating conduction of switching elements to achieve corresponding transformation of the DC power supply by controlling six switches to drive the corresponding ISG motor.

[0014] In an optional implementation, the slow charging module includes: a tenth sub-control module; The tenth sub-control module is electrically connected to the main control module, and the tenth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The tenth sub-control module is electrically connected to a slow charging port temperature detection circuit, and the slow charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the slow charging port temperature; The fast charging module includes: an eleventh sub-control module; The eleventh sub-control module is electrically connected to the main control module, and the eleventh sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The eleventh sub-control module is electrically connected to a charging connection confirmation detection circuit and a fast charging port temperature detection circuit, the charging connection confirmation detection circuit outputs a high level when the charging gun is connected and outputs a low level otherwise, the fast charging port temperature detection circuit, the fast charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the fast charging port temperature; The DC-to-DC converter module is electrically connected to the main control module and the power chip. The DC-to-DC converter module is suitable for converting the input high-voltage DC voltage into the required low-voltage DC voltage and providing it to the power chip.

[0015] In a second aspect, the embodiment of the present disclosure further provides a control method using the above-mentioned all-in-one power domain control system for new energy vehicles, including: The main control module is electrically connected to several functional modules, each functional module is provided with a corresponding sub-control module, the sub-control module is electrically connected to a corresponding detection module and an execution module, and the detection module of each functional module is electrically connected to the main control module; The main control module is configured to directly connect to the detection module of the corresponding functional module according to the currently required execution function, and the detection modules of the remaining functional modules are electrically connected to the corresponding sub-control modules. The main control module directly obtains the parameter data detected by the direct-connected detection module, and the main control module generates a corresponding control signal based on the parameter data, and feeds back the control signal to the sub-control module corresponding to the direct-connected detection module. The sub-control module controls the operation of the corresponding execution module according to the control signal.

[0016] The beneficial effect of the present invention is that the all-in-one power domain control system for new energy vehicles includes: a main control module, and several functional modules electrically connected to the main control module; the functional modules at least include: an engine management module, an automatic transmission electronic control module, a shift control module, a hybrid vehicle control module, an air conditioning module, a thermal management module for battery and motor temperature, a refueling door module, a traction motor control module, an integrated starter generator control module, a DC to DC converter module, a slow charging module and a fast charging module; the main control module and each of the functional modules are arranged on a circuit board, and the main control module is configured to control the engine management module and / or the automatic transmission The electronic control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module for the battery and the motor temperature and / or the refueling door module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the fast charging module perform corresponding functions, thereby realizing that each functional module in the new energy vehicle is directly electrically connected to the main control module. Each functional module can directly send the detected parameter data to the main control module to avoid the delay caused by sending data step by step. The main control module can immediately feedback the corresponding control signal according to the acquired parameter data so that the corresponding functional module can immediately perform the corresponding function.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A principle block diagram of an all-in-one power domain control system for a new energy vehicle provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of the connection of an all-in-one power domain control system for a new energy vehicle provided by an embodiment of the present disclosure; Figure 3A schematic diagram of a multi-layer structure of a circuit board provided in an embodiment of the present disclosure.

[0021] In the figure: 1 signal layer, 2 physical board layers. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0024] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0025] like Figure 1 and Figure 2As shown, at least one disclosed embodiment provides an all-in-one power domain control system for new energy vehicles, including: a main control module, and several functional modules electrically connected to the main control module; the functional modules at least include: an engine management module, an automatic transmission electronic control module, a shift control module, a hybrid vehicle control module, an air conditioning module, a thermal management module for battery and motor temperature, a refueling door module, a traction motor control module, an integrated starter generator control module, a DC to DC converter module, a slow charging module and a fast charging module; the main control module and each of the functional modules are arranged on a circuit board, and the main control module is configured to control the engine management module and / or automatic transmission electronic control module. The transmission electronic control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module for the battery and motor temperature and / or the refueling door module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the fast charging module perform corresponding functions, thereby realizing that each functional module in the new energy vehicle is directly electrically connected to the main control module. Each functional module can directly send the detected parameter data to the main control module to avoid the delay caused by sending data step by step. The main control module can immediately feedback the corresponding control signal based on the acquired parameter data so that the corresponding functional module can immediately perform the corresponding function.

[0026] The engine management module is the engine management system (EMS) used to control and manage the performance of the automobile engine.

[0027] The automatic transmission electronic control module is the automatic transmission electronic control unit (TCU) responsible for optimizing the performance and driving experience of the transmission.

[0028] The shift control module is a shift control unit (SCU) that monitors and improves the stability and handling of the vehicle during driving.

[0029] The hybrid vehicle control module is a hybrid vehicle control unit (HCU) that manages the coordinated work between the electric motor and the internal combustion engine, optimizes energy use and improves fuel efficiency.

[0030] The air conditioning module is an air conditioning system (HeatingVentilation Air-conditioning and Cooling, HVAC) that regulates the temperature, humidity and air quality in the car.

[0031] The thermal management module for battery and motor temperature is a thermal management system (TMS) that controls and optimizes the temperature of various vehicle components, especially batteries and motors.

[0032] The refueling door module is a refueling door unit that controls the opening or closing of the refueling door.

[0033] The traction motor control module is a traction motor (Traction Motor, TM) control system used to drive the vehicle and provide power output for vehicle driving.

[0034] The integrated starter generator control module is an integrated starter generator (ISG) control system that combines the functions of engine starting and power generation to improve the overall efficiency and performance of the system.

[0035] The DC-to-DC converter module is a DC-to-DC converter (DCDC) that converts the input DC voltage into the required output DC voltage to power the vehicle's low-voltage electrical appliances.

[0036] The slow-charge module is a slow-charge system that converts AC power into DC power to charge the batteries of electric vehicles.

[0037] The fast charging module is a fast charging system that directly inputs external DC power into the vehicle's battery.

[0038] Each functional module is provided with a corresponding sub-control module, as well as several detection modules and execution modules electrically connected to the sub-control module, wherein the detection module can be various sensors, etc., and the execution module can be a mechanical component on a new energy vehicle. The detection module detects the required parameter data, and the sub-control module controls the corresponding execution module to work to realize the corresponding function.

[0039] In an optional embodiment, the engine management module includes: a first sub-control module; the first sub-control module is electrically connected to the main control module, and the first sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the first sub-control module is electrically connected to an engine oil pump control valve, an electronic throttle body, an ignition coil, a pottery solenoid valve, an intake camshaft phase modulator solenoid valve electromagnet and an exhaust camshaft phase modulator solenoid valve electromagnet; the engine oil pump control valve, its circuit includes a corresponding power chip, a MOSFET and a pull-up power supply, when the corresponding power chip applies an electrical signal to the corresponding MOSFET gate level, the pull-up power supply is short-circuited to ground to control the engine oil pump The valve body in the control valve is opened; the electronic throttle body obtains the electrical signal that can be received by the first sub-control module through the pull-up power supply and the current limiting resistor, and the first sub-control module can send the electrical signal to the main control module; the ignition coil is composed of a transformer and a MOSFET based on the principle of electromagnetic induction, and the power chip realizes the start and stop of the ignition coil by controlling the switch of the MOSFET; the ceramic pot solenoid valve is controlled on and off based on the power chip; the solenoid valve electromagnet of the intake camshaft phase modulator, its circuit is composed of the corresponding power chip, MOSFET and the pull-up power supply, when the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the solenoid valve electromagnet of the intake camshaft phase modulator to open; The exhaust camshaft phase modulator solenoid valve electromagnet, its circuit is composed of a corresponding power chip, a MOSFET and a pull-up power supply. When the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the exhaust camshaft phase modulator solenoid valve electromagnet to open; the first sub-control module can also be electrically connected to the intake camshaft sensor, the exhaust camshaft sensor, the intake pressure temperature sensor, the oil pressure sensor, the crankshaft sensor, the EGR pressure difference sensor, the EGR temperature sensor, the engine main water temperature sensor, the air mass flow sensor, and the front oxygen sensor, all of which convert the physical signal ratio into an electrical signal and transmit it to the first sub-control module through a sampling circuit to obtain the required parameter data; the engine oil pump control valve, the electronic throttle body, the ignition coil, the pottery solenoid valve, etc. can be used as an execution module.

[0040] In the process of engine management and control, the first self-control module and / or the main control module detects the electrical signals provided by the corresponding sensors in real time, analyzes the current working state of the engine, and makes judgments based on the control logic preset by the algorithm. The first self-control module and / or the main control module achieves precise control of the fuel injection amount by adjusting the voltage of the engine oil pump control valve, changes the throttle opening by adjusting the voltage of the electronic throttle body to control the engine intake volume, controls the fuel combustion rate inside the engine by controlling the ignition coil switch, and reintroduces a portion of the exhaust gas discharged by the engine into the combustion chamber by adjusting the on-off of the ceramic pot solenoid valve to lower the combustion temperature and reduce the emission of nitrogen oxides (NOx), thereby ultimately ensuring precise control of the air-fuel ratio.

[0041] In an optional embodiment, the automatic transmission electronic control module includes: a second sub-control module; the second sub-control module is electrically connected to the main control module, and the second sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the second sub-control module is electrically connected to a clutch position sensor, a clutch pressure sensor and a clutch solenoid valve; the clutch position sensor obtains an electrical signal receivable by the second sub-control module through a corresponding pull-up power supply and a current limiting resistor, and uses a capacitor to suppress disturbances. The obtained electrical signal can be sent to the main control module through the second sub-control module, and the clutch position sensor can also directly send the electrical signal to the main control module; The clutch pressure sensor obtains the electrical signal receivable by the second sub-control module through the corresponding pull-up power supply and current limiting resistor, and uses the RC filter circuit to suppress the disturbance. The obtained electrical signal can be sent to the main control module through the second sub-control module, and the clutch pressure sensor can also directly send the electrical signal to the main control module; the clutch solenoid valve is controlled by the power chip to output PWM signal, and its control signal is transmitted through the motor system interface; the lubricating oil pressure sensor electrically connected to the second sub-control module converts the pressure ratio into an electrical signal and transmits it to the main control module and / or the second sub-control module through the sampling circuit; the clutch solenoid valve can be used as an execution module, and the sensor can be used as a detection module.

[0042] During the operation of the automatic transmission, the second self-control module and / or the main control module detects the electrical signals provided by the corresponding sensors in real time, analyzes the current vehicle driving status, and makes a judgment based on the shifting logic preset by the algorithm. Then the second self-control module and / or the main control module adjusts the state of the transmission by controlling the voltage output to the clutch solenoid valve to achieve automatic shifting operation.

[0043] In an optional embodiment, the gear shift control module includes: a third sub-control module; the third sub-control module is electrically connected to the main control module, and the third sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the third sub-control module is electrically connected to a P gear button and a hand-shift lever; the P gear button sets different voltage-dividing resistors based on the pressed and released states, and sends the electrical signal of the corresponding state to the third sub-control module and / or the main control module for judgment through a sampling circuit; the hand-shift lever obtains the gear information of the user's operation based on the Hall sensor, and sends it to the third sub-control module and / or the main control module in the form of PWM; the power chip can provide the required voltage to the corresponding circuits such as the P gear button and the hand-shift lever.

[0044] During the gear adjustment process, the third sub-control module and / or the main control module detects the electrical signals of the P gear button and the shift lever in real time, and adjusts the transmission to the appropriate gear in the driving mode based on the shifting logic preset by the algorithm.

[0045] In an optional embodiment, the hybrid vehicle control module includes: a fourth sub-control module; the fourth sub-control module is electrically connected to the main control module, and the fourth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the fourth sub-control module is electrically connected to an accelerator pedal and a brake pedal; the accelerator pedal transmits a corresponding electrical signal to the main control module and / or the fourth sub-control module through an internal sensor to obtain the current acceleration state of the vehicle; the brake pedal, based on the Hall back magnetism principle, detects the intensity of the magnetic flux density, generates two switching signals, which are converted into high and low level signals through a processing circuit and transmitted to the main control module and / or the fourth sub-control module; the power chip can provide the required voltage to the sensors and circuits inside the accelerator pedal and the brake pedal; the fourth sub-control module can send the received electrical signal to the main control module.

[0046] During the hybrid power adjustment process, the fourth sub-control module and / or the main control module detects the electrical signals of each corresponding sensor in real time, and determines the working state of the power system based on the preset control strategy and real-time analysis results, such as enabling the electric mode, internal combustion engine mode or hybrid mode.

[0047] The refueling door module includes: a seventh sub-control module; the seventh sub-control module is electrically connected to the main control module, and the seventh sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the seventh sub-control module is electrically connected to a refueling door position sensor, and the refueling door position sensor is suitable for detecting the refueling door position electrical signal, obtaining the electrical signal receivable by the main control chip through a pull-up power supply and a current limiting resistor, and sending it to the main control module and / or the seventh sub-control module; the power chip can provide the required voltage; the seventh sub-control module is also electrically connected to the refueling door motor, and the seventh sub-control module sends a control signal to the drive chip based on the refueling door position electrical signal, and the full-half driver outputs a PWM signal to control the refueling door motor.

[0048] In an optional embodiment, the air conditioning module includes: a fifth sub-control module; the fifth sub-control module is electrically connected to the main control module, and the fifth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the fifth sub-control module is electrically connected to an electromagnetic expansion valve and a low-temperature radiator water pump; the electromagnetic expansion valve includes a corresponding coil and a diode, and the electromagnetic force generated by excitation drives the valve core to move to open or close, and the control of the evaporator pressure is realized by the corresponding drive chip; the low-temperature radiator water pump is a centrifugal pump driven by a brushless DC motor, which is used to drive the cooling The coolant flows in the cooling circuit at a preset flow rate, and its driving method is realized by the corresponding driving chip; the fifth sub-control module is also electrically connected to the ambient temperature sensor and the evaporator temperature sensor. In the temperature sensing part, thermocouple or thermistor technology can provide stable readings within a wide temperature range to ensure the accuracy of the data; the power chip can provide the required voltage; the parameter data detected by each sensor in the air conditioning module can be sent directly to the main control module or the fifth sub-control module, and the fifth sub-control module can send the received parameter data to the main control module, and the parameter data can be obtained through the electrical signal obtained by the sensor.

[0049] During the cooling demand adjustment process, the fifth sub-control module and / or the main control module detects the electrical signals of the corresponding sensors in real time, and based on the preset control strategy, controls the refrigerant flow by adjusting the opening of the electromagnetic expansion valve, and controls the speed of the low-temperature radiator water pump to suck the coolant from the low-temperature radiator and transport it to other parts of the system, thereby realizing dynamic adjustment of the coolant flow to meet different cooling needs.

[0050] In an optional embodiment, the thermal management module for the battery and motor temperature includes: a sixth sub-control module; the sixth sub-control module is electrically connected to the main control module, and the sixth sub-control module is electrically connected to a power chip, which is electrically connected to the main control module; the sixth sub-control module is electrically connected to a thermal management ball valve, and the sixth sub-control module is configured to control the opening and closing of a main coolant valve installed on the engine through the thermal management ball valve; the power chip can provide the required voltage; the thermal management ball valve is specifically used to control the main coolant valve installed on the engine, the actuator is used to rotate the valve and control the flow circulation of the engine coolant, and the thermal management ball valve has a position feedback function, the angle position measurement is completed through an embedded Hall effect sensor, and the corresponding drive chip controls the opening and closing angle of the actuator by controlling the PWM signal to adjust the cooling capacity; the parameter data detected by the embedded Hall effect sensor can be sent directly to the main control module, or it can be sent to the sixth sub-control module and then sent to the main control module through the sixth sub-control module.

[0051] During the thermal management process, the sixth sub-control module and / or the main control module dynamically adjusts the opening of the thermal management ball valve based on a preset control strategy to dynamically adjust the flow rate of the coolant.

[0052] In an optional embodiment, the traction motor control module includes: an eighth sub-control module; the eighth sub-control module is electrically connected to the main control module, and the eighth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; the eighth sub-control module is electrically connected to a first three-phase full-bridge inverter unit, and the first three-phase full-bridge inverter unit is based on the alternating conduction of the switching elements to achieve corresponding transformation of the DC power supply by controlling six switches to drive the corresponding traction motor; the first three-phase full-bridge inverter unit, based on the alternating conduction of the switching elements, can achieve corresponding transformation of the DC power supply by controlling six switches, and the first three-phase full-bridge inverter unit is mainly composed of four The eighth sub-control module is also electrically connected to the corresponding current sensor for detecting the output current; the flyback circuit is powered by the flyback transformer driver chip; the high-voltage detection circuit reduces the input high-voltage voltage through the voltage-dividing resistor, and then uses the isolation chip to electrically isolate the high-voltage side and the low-voltage side, and its electrical signal is sent to the eighth sub-control module / or the main control module for processing after being amplified by the ADI chip. It can be directly input to the main control module or input to the main control module via the eighth sub-control module.

[0053] The integrated starter generator control module includes: a ninth sub-control module; the ninth sub-control module is electrically connected to the main control module, and the ninth sub-control module is electrically connected to a power chip, which is electrically connected to the main control module; the power chip can provide the required voltage; the ninth sub-control module is electrically connected to a second three-phase full-bridge inverter unit, and the second three-phase full-bridge inverter unit is based on the alternating conduction of the switching elements to achieve the corresponding transformation of the DC power supply by controlling the six switches to drive the corresponding ISG motor; the second three-phase full-bridge inverter unit, based on the alternating conduction of the switching elements, can achieve the corresponding transformation of the DC power supply by controlling the six switches, and the second three-phase full-bridge inverter unit is mainly composed of It consists of four parts, a switch composed of 6 IGBTs; a DC power supply with a stable DC voltage provided by a battery; an output filter for smoothing the output AC waveform and reducing high-frequency harmonics; a driver chip for controlling the conduction state of the IGBT; the ninth sub-control module is also electrically connected to the corresponding current sensor for detecting the output current; a flyback circuit, which is powered by a flyback transformer driver chip; a high-voltage detection circuit, which reduces the input high-voltage voltage through a voltage-dividing resistor, and then uses an isolation chip to electrically isolate the high-voltage side and the low-voltage side. The electrical signal is amplified by an ADI chip and then sent to the ninth sub-control module / or the main control module for processing. It can be directly input to the main control module or input to the main control module via the ninth sub-control module.

[0054] In an optional embodiment, the slow charge module includes: a tenth sub-control module; the tenth sub-control module is electrically connected to the main control module, and the tenth sub-control module is electrically connected to a power chip, which is electrically connected to the main control module; the tenth sub-control module is electrically connected to a slow charging port temperature detection circuit, the slow charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the slow charging port temperature; the slow charging port temperature detection circuit obtains the slow charging port voltage signal based on a common interface on the vehicle end, and obtains an electrical signal receivable by a processor through a pull-up power supply and a current limiting resistor. The detection circuit provides stable readings within a wide temperature range to ensure the accuracy of the data.

[0055] The tenth sub-control module is responsible for receiving and processing data from the slow charging port temperature detection circuit. It can efficiently process complex temperatures and quickly extract information. The data can also be directly sent to the main control module for processing; The tenth sub-control module is also electrically connected to the slow charging port electronic lock driver, and controls the state of the electronic lock through the full half-bridge driver unit output PWM. The open or locked state of the slow charging port electronic lock is realized through the detection circuit, which feeds back the state information to the control unit through the pull-up power supply and current limiting resistor to ensure the correctness of the lock operation.

[0056] The fast charging module includes: an eleventh sub-control module; the eleventh sub-control module is electrically connected to the main control module, and the eleventh sub-control module is electrically connected to the power chip, which is electrically connected to the main control module; the eleventh sub-control module is electrically connected to a charging connection confirmation detection circuit and a fast charging port temperature detection circuit, the charging connection confirmation detection circuit outputs a high level when the charging gun is connected and outputs a low level otherwise, the fast charging port temperature detection circuit, the fast charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the fast charging port temperature; the charging connection confirmation detection circuit obtains the charging gun connector signal based on the common interface of the whole vehicle end, and the charging state is judged using a double diode, and outputs a high level when the charging gun is connected and outputs a low level otherwise. The fast charging port temperature detection circuit obtains the slow charging port voltage signal based on the common interface of the whole vehicle end, and obtains an electrical signal that can be received by the processor through a pull-up power supply and a current limiting resistor. The detection circuit provides stable readings in a wide temperature range to ensure the accuracy of the data.

[0057] The eleventh sub-control module is responsible for receiving and processing data from the data detection circuit. It has high processing performance, can efficiently process complex temperatures, quickly extract information, and the data can also be directly sent to the main control module for processing; The technical solution also includes a low-voltage auxiliary power supply detection circuit, which obtains the slow charging port voltage signal through the public interface on the vehicle side, and then uses a pull-up power supply and a current-limiting resistor to obtain an electrical signal that can be received by the processor; a relay control circuit, which controls the on and off of the fast charging interface through a full half-bridge driver unit.

[0058] The DC-DC converter module is electrically connected to the main control module and the power chip. The DC-DC converter module is suitable for converting the input high-voltage DC voltage into the required low-voltage DC voltage and providing it to the power chip. The core of the DC-DC converter module is a full-bridge conversion unit, a low-voltage power supply unit and a drive unit. The full-bridge conversion unit converts the input high-voltage DC voltage into the required low-voltage DC voltage based on the full-bridge change. The full-bridge conversion mainly consists of four parts: a switching element composed of MOSFET; a transformer for isolation and voltage conversion; an output rectifier that converts AC signals into DC signals; and a filter that smoothes the output signal to reduce ripples.

[0059] The low-voltage power supply unit, based on the low-voltage output of the full-bridge conversion unit, provides the required voltage for the remaining modules of the power domain system through the SEPIC circuit. It mainly consists of four parts: a switch composed of 4 MOSFETs; a power management chip that controls the output voltage; a transformer for isolation and voltage conversion; and a filter that smoothes the output signal to reduce disturbances.

[0060] The driving unit achieves the purpose of converting the output voltage by controlling the switch of the full-bridge conversion unit MOSFET. The flyback circuit that supplies power to the driving unit achieves the conversion of the low voltage through the flyback transformer.

[0061] The power chip can provide the required voltage to each functional module.

[0062] The circuit board is a multi-layer structure, a multi-layer printed circuit board, and each layer structure corresponds to a circuit connection method with a functional module as the core, that is, through the circuit connection method, the detection module in the core functional module is directly electrically connected to the main control module, and the execution module is electrically connected to the sub-control module of the functional module, so that the parameter data detected by the detection module is directly sent to the main control module; when the core functional module is switched, the corresponding circuit connection method can be directly switched, that is, switched to the circuit connection method of other layers, so that the detection module of the functional module corresponding to the required execution function is directly electrically connected to the main control module.

[0063] The specific structure of the circuit board can be as follows Figure 3 As shown, the signal layer 1 is a routing layer, and each signal layer 1 corresponds to a circuit connection method (circuit routing method) with a functional module as the core. The upper and lower signal layers 1 are isolated by a physical board layer 2. In traditional circuit boards, multiple power supply layers need to be set up to power the components. There is electromagnetic interference in the power supply layer, so a group of signal layers 1 need to be set up with multiple layers to avoid electromagnetic interference. In this embodiment, the power supply is a separate other power supply method, so only one physical board layer 2 is needed between the two signal layers 1 for isolation, and there is no need to worry about electromagnetic interference. Moreover, since the power supply layer is removed under the same volume, more signal layers 1 can be set up to meet the wiring requirements of more functional modules.

[0064] In an optional embodiment, a control method using the above-mentioned all-in-one power domain control system for new energy vehicles is also provided, including: a main control module is electrically connected to a number of functional modules, each functional module is provided with a corresponding sub-control module, the sub-control module is electrically connected to a corresponding detection module and an execution module, and the detection module of each functional module is electrically connected to the main control module; the main control module is configured to directly connect to the detection module of the corresponding functional module according to the currently required execution function, and the detection modules of the remaining functional modules are electrically connected to the corresponding sub-control modules, the main control module directly obtains the parameter data detected by the directly connected detection module, the main control module generates a corresponding control signal according to the parameter data, and feeds back the control signal to the sub-control module corresponding to the directly connected detection module, and the sub-control module controls the corresponding execution module to work according to the control signal.

[0065] Some specific examples, when the engine management module is the most important function module (core function module) among the functions to be implemented at this time, the electrical signals detected by various sensors and other devices can be directly sent to the main control module. At this time, the first sub-control module does not receive the electrical signals detected by the sensors and other devices. The main control module directly generates a control signal according to the parameter data corresponding to the electrical signal, and sends the control signal to the first sub-control module. The first sub-control module controls the corresponding engine oil pump control valve, electronic throttle body, ignition coil, pottery solenoid valve, intake camshaft phaser solenoid valve electromagnet and exhaust camshaft phaser solenoid valve electromagnet according to the control signal. ) The main control module has better performance and can process and judge the parameter data more accurately. When the performance of the first sub-control module is low, it only needs to be responsible for controlling the execution module. The first sub-control module can more accurately control the execution module, making the functions required by new energy vehicles more accurate and fast. At this time, the data detected by the sensors corresponding to the remaining functional modules are sent to the corresponding sub-control modules, which process the data and control the execution modules. Similarly, when other functional modules are used as core functional modules, the corresponding detection modules and execution modules have similar working processes.

[0066] When the functional module becomes the core functional module, the data processing of the data detected by its sensor is carried out in the main control module, so that the parameter data can be processed and judged more accurately through the main control module with better performance.

[0067] In summary, the all-in-one power domain control system for new energy vehicles includes: a main control module, and several functional modules electrically connected to the main control module; the functional modules at least include: an engine management module, an automatic transmission electronic control module, a shift control module, a hybrid vehicle control module, an air conditioning module, a thermal management module for battery and motor temperature, a refueling door module, a traction motor control module, an integrated starter generator control module, a DC to DC converter module, a slow charging module and a fast charging module; the main control module and each of the functional modules are arranged on a circuit board, and the main control module is configured to control the engine management module and / or the automatic transmission electronic control module. The control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module of the battery and the motor temperature and / or the refueling door module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-to-DC converter module and / or the slow charging module and / or the fast charging module perform corresponding functions, thereby realizing that each functional module in the new energy vehicle is directly electrically connected to the main control module, each functional module can directly send the detected parameter data to the main control module, avoiding the delay caused by sending data step by step, and the main control module can immediately feedback the corresponding control signal according to the acquired parameter data, so that the corresponding functional module immediately performs the corresponding function.

[0068] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An all-in-one power domain control system for new energy vehicles, characterized in that: include: A main control module, and a plurality of functional modules electrically connected to the main control module; The functional modules at least include: an engine management module, an automatic transmission electronic control module, a shift control module, a hybrid vehicle control module, an air conditioning module, a thermal management module for battery and motor temperature, a refueling door module, a traction motor control module, an integrated starter generator control module, a DC to DC converter module, a slow charging module and a fast charging module; The main control module and each of the functional modules are arranged on a circuit board, and the main control module is configured to control the engine management module and / or the automatic transmission electronic control module and / or the shift control module and / or the hybrid vehicle control module and / or the air conditioning module and / or the thermal management module for the battery and motor temperature and / or the refueling door module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC to DC converter module and / or the slow charging module and / or the fast charging module to perform corresponding functions.

2. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The engine management module includes: a first sub-control module; The first sub-control module is electrically connected to the main control module, and the first sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The first sub-control module is electrically connected to an engine oil pump control valve, an electronic throttle body, an ignition coil, a pottery solenoid valve, an intake camshaft phaser solenoid valve electromagnet and an exhaust camshaft phaser solenoid valve electromagnet; The engine oil pump control valve, whose circuit includes a corresponding power chip, a MOSFET and a pull-up power supply, when the corresponding power chip applies an electrical signal to the corresponding MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the engine oil pump control valve to open; The electronic throttle body obtains an electrical signal receivable by the first sub-control module through a pull-up power supply and a current-limiting resistor; The ignition coil includes a transformer and a MOSFET, and the power chip realizes the start and stop of the ignition coil by controlling the switch of the MOSFET; The ceramic pot solenoid valve is controlled on and off by a power chip; The solenoid valve electromagnet of the intake camshaft phase modulator has a circuit including a corresponding power chip, a MOSFET and a pull-up power supply. When the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the solenoid valve electromagnet of the intake camshaft phase modulator to open; The exhaust camshaft phase modulator solenoid valve electromagnet, its circuit includes a corresponding power chip, a MOSFET and a pull-up power supply. When the corresponding power chip applies an electrical signal to the MOSFET gate level, the pull-up power supply is short-circuited to the ground to control the valve body in the exhaust camshaft phase modulator solenoid valve electromagnet to open.

3. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The automatic transmission electronic control module comprises: a second sub-control module; The second sub-control module is electrically connected to the main control module, and the second sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module; The second sub-control module is electrically connected to a clutch position sensor, a clutch pressure sensor and a clutch solenoid valve; The clutch position sensor obtains an electrical signal receivable by the second sub-control module and / or the main control module through a corresponding pull-up power supply and a current-limiting resistor; The clutch pressure sensor obtains an electrical signal receivable by the second sub-control module and / or the main control module through a corresponding pull-up power supply and a current-limiting resistor; The clutch solenoid valve is controlled by a power chip that outputs a PWM signal.

4. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The shift control module comprises: a third sub-control module; The third sub-control module is electrically connected to the main control module, and the third sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The third sub-control module is electrically connected to the P gear button and the hand gear lever; The P gear button is provided with different voltage-dividing resistors according to the pressing and releasing states, and the electrical signal of the corresponding state is sent to the third sub-control module and / or the main control module for judgment through the sampling circuit; The hand-held shift lever obtains the gear position information operated by the user according to the Hall sensor, and sends it to the third sub-control module and / or the main control module in the form of PWM.

5. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The hybrid vehicle control module comprises: a fourth sub-control module; The fourth sub-control module is electrically connected to the main control module, and the fourth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The fourth sub-control module is electrically connected to an accelerator pedal and a brake pedal; The accelerator pedal transmits corresponding electrical signals to the main control module and / or the fourth sub-control module through an internal sensor to obtain the current acceleration state of the vehicle; The brake pedal detects the intensity of the magnetic flux density, generates two switch signals, and then converts them into high and low level signals through a processing circuit and transmits them to the main control module and / or the fourth sub-control module; The refueling door module includes: a seventh sub-control module; The seventh sub-control module is electrically connected to the main control module, and the seventh sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The seventh sub-control module is electrically connected to a refueling door position sensor, and the refueling door position sensor is suitable for detecting an electrical signal of a refueling door position and sending the signal to the main control module and / or the seventh sub-control module.

6. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The air conditioning module comprises: a fifth sub-control module; The fifth sub-control module is electrically connected to the main control module, and the fifth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The fifth sub-control module is electrically connected to the electromagnetic expansion valve and the low-temperature radiator water pump; The electromagnetic expansion valve includes a corresponding coil and a diode, and the electromagnetic force generated by excitation drives the valve core to move to open or close, and the control of the evaporator pressure is realized by the corresponding driver chip; The low-temperature radiator water pump is used to drive the coolant to flow in the cooling circuit at a preset flow rate, and its driving method is implemented by a corresponding driving chip.

7. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The thermal management module for the battery and motor temperature includes: a sixth sub-control module; The sixth sub-control module is electrically connected to the main control module, and the sixth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The sixth sub-control module is electrically connected to a thermal management ball valve, and the sixth sub-control module is configured to control the opening and closing of a main coolant valve installed on the engine through the thermal management ball valve.

8. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The traction motor control module includes: an eighth sub-control module; The eighth sub-control module is electrically connected to the main control module, and the eighth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The eighth sub-control module is electrically connected to a first three-phase full-bridge inverter unit, and the first three-phase full-bridge inverter unit realizes corresponding conversion of a DC power supply by controlling six switches through alternate conduction of switch elements, so as to drive a corresponding traction motor; The integrated starter generator control module includes: a ninth sub-control module; The ninth sub-control module is electrically connected to the main control module, and the ninth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The ninth sub-control module is electrically connected to a second three-phase full-bridge inverter unit, which realizes corresponding transformation of the DC power supply by controlling six switches through alternating conduction of switching elements to drive the corresponding ISG motor.

9. The all-in-one power domain control system for new energy vehicles according to claim 1, characterized in that: The slow charging module includes: a tenth sub-control module; The tenth sub-control module is electrically connected to the main control module, and the tenth sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The tenth sub-control module is electrically connected to a slow charging port temperature detection circuit, and the slow charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the slow charging port temperature; The fast charging module includes: an eleventh sub-control module; The eleventh sub-control module is electrically connected to the main control module, and the eleventh sub-control module is electrically connected to a power chip, and the power chip is electrically connected to the main control module to supply power through the power chip; The eleventh sub-control module is electrically connected to a charging connection confirmation detection circuit and a fast charging port temperature detection circuit, the charging connection confirmation detection circuit outputs a high level when the charging gun is connected and outputs a low level otherwise, the fast charging port temperature detection circuit, the fast charging port temperature detection circuit obtains a slow charging port voltage signal and sends it to the main control module to detect the fast charging port temperature; The DC-to-DC converter module is electrically connected to the main control module and the power chip. The DC-to-DC converter module is suitable for converting the input high-voltage DC voltage into the required low-voltage DC voltage and providing it to the power chip.

10. A control method using the all-in-one power domain control system for new energy vehicles as claimed in claim 1, characterized in that: include: The main control module is electrically connected to several functional modules, each functional module is provided with a corresponding sub-control module, the sub-control module is electrically connected to a corresponding detection module and an execution module, and the detection module of each functional module is electrically connected to the main control module; The main control module is configured to directly connect to the detection module of the corresponding functional module according to the currently required execution function, and the detection modules of the remaining functional modules are electrically connected to the corresponding sub-control modules. The main control module directly obtains the parameter data detected by the direct-connected detection module, and the main control module generates a corresponding control signal based on the parameter data, and feeds back the control signal to the sub-control module corresponding to the direct-connected detection module. The sub-control module controls the operation of the corresponding execution module according to the control signal.

Images