Multi-in-one power domain control system and control method for new energy vehicles

Abstract

This invention belongs to the field of new energy vehicle technology, and particularly relates to a multi-functional power domain control system and control method for new energy vehicles. The system includes a main control module 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 battery and motor temperature and / or the accelerator pedal module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-DC converter module and / or the slow charging module and / or the fast charging module to perform corresponding functions. This enables direct electrical connection between each functional module in the new energy vehicle and the main control module. Each functional module can directly send detected parameter data to the main control module, avoiding delays caused by sequential data transmission. The main control module can immediately feed back corresponding control signals based on the acquired parameter data.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle technology, specifically relating to the field of new energy vehicle control technology, and particularly to an all-in-one power domain control system and control method for new energy vehicles. Background Technology

[0002] In existing new energy vehicles, data transmission is performed step by step. After the system modules are divided into different levels, when data is detected and control is required, each system module needs to communicate with the main control module step by step to transmit the data. This results in slow data transmission. Even if a lower-level system module detects data, it still needs to transmit the data after a higher-level system module, causing a delay in data transmission and resulting in a corresponding delay in the vehicle's actuators.

[0003] Therefore, due to the technical problem of data transmission delay caused by the hierarchical transmission of data 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 information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one all-in-one power domain control system and control method for new energy vehicles.

[0006] In a first aspect, embodiments of this disclosure provide an all-in-one power domain control system for new energy vehicles, including:

[0007] The main control module, and several functional modules electrically connected to the main control module;

[0008] The functional modules include at least: 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 temperatures, a throttle door module, a traction motor control module, an integrated starter generator control module, a DC-DC converter module, a slow charging module, and a fast charging module.

[0009] The main control module and each of the functional modules are all mounted on the circuit board. 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 battery and electric motor temperature and / or the accelerator pedal module and / or the traction motor control module and / or the integrated starter generator control module and / or the DC-DC converter module and / or the slow charging module and / or the fast charging module to perform corresponding functions.

[0010] In one optional implementation, the engine management module includes: a first sub-control module;

[0011] The first sub-control module is electrically connected to the main control module, and the first sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0012] The first sub-control module is electrically connected to the engine oil pump control valve, electronic throttle body, ignition coil, ceramic solenoid valve, intake camshaft phase adjuster solenoid valve electromagnet and exhaust camshaft phase adjuster solenoid valve electromagnet.

[0013] The engine oil pump control valve 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 gate of the corresponding MOSFET, the pull-up power supply is short-circuited to ground to control the valve body in the engine oil pump control valve to open.

[0014] The electronic throttle body obtains the electrical signals that the first sub-control module can receive through a pull-up power supply and a current-limiting resistor;

[0015] The ignition coil is composed of a transformer and a MOSFET based on the principle of electromagnetic induction. The power chip controls the switching of the MOSFET to start and stop the ignition coil.

[0016] The ceramic pot solenoid valve is controlled to open and close based on a power chip.

[0017] The solenoid valve electromagnet of the intake camshaft phase adjuster has a circuit consisting 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, the pull-up power supply is short-circuited to ground to control the valve body in the solenoid valve electromagnet of the intake camshaft phase adjuster to open.

[0018] The solenoid of the exhaust camshaft phase adjuster solenoid valve has a circuit consisting 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, the pull-up power supply is short-circuited to ground, which controls the valve body in the solenoid of the exhaust camshaft phase adjuster solenoid valve to open.

[0019] In one optional implementation, the automatic transmission electronic control module includes: a second sub-control module;

[0020] The second sub-control module is electrically connected to the main control module, and the second sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0021] The second sub-control module is electrically connected to a clutch position sensor, a clutch pressure sensor, and a clutch solenoid valve;

[0022] The clutch position sensor obtains the electrical signal that the second sub-control module can receive through the corresponding pull-up power supply and current-limiting resistor;

[0023] The clutch pressure sensor obtains the electrical signal that the second sub-control module can receive through the corresponding pull-up power supply and current-limiting resistor;

[0024] The clutch solenoid valve is controlled by a power chip that outputs a PWM signal.

[0025] In one optional implementation, the shift control module includes: a third sub-control module;

[0026] The third sub-control module is electrically connected to the main control module, and the third sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0027] The third sub-control module is electrically connected to the P gear button and the shift lever;

[0028] The P-position button has different voltage divider resistors set according to the pressed and released states. 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.

[0029] The gear selector lever acquires the gear position information operated by the user based on a Hall sensor and sends it to the third sub-control module and / or the main control module in the form of PWM.

[0030] In one optional implementation, the hybrid vehicle control module includes: a fourth sub-control module;

[0031] The fourth sub-control module is electrically connected to the main control module, and the fourth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0032] The fourth sub-control module is electrically connected to the accelerator pedal and the brake pedal;

[0033] The accelerator pedal transmits corresponding electrical signals to the main control module and / or the fourth sub-control module through internal sensors to obtain the current acceleration status of the vehicle.

[0034] The brake pedal, based on the Hall effect back magnetism principle, detects the intensity of magnetic flux density to generate two switching signals, which are then processed by the circuit to convert them into high and low level signals and sent to the main control module and / or the fourth sub-control module.

[0035] The refueling gate module includes: a seventh sub-control module;

[0036] The seventh sub-control module is electrically connected to the main control module, and the seventh sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0037] The seventh sub-control module is electrically connected to a refueling door position sensor, which is adapted to detect the refueling door position electrical signal and send it to the main control module.

[0038] In one optional implementation, the air conditioning module includes: a fifth sub-control module;

[0039] The fifth sub-control module is electrically connected to the main control module, and the fifth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0040] The fifth sub-control module is electrically connected to an electromagnetic expansion valve and a low-temperature radiator water pump.

[0041] The electromagnetic expansion valve includes a corresponding coil and a diode. It opens or closes by driving the valve core to move through the electromagnetic force generated by excitation. The control of the evaporator pressure is realized by the corresponding drive chip.

[0042] 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 the corresponding driving chip.

[0043] In one optional implementation, the thermal management module for battery and motor temperature includes: a sixth sub-control module;

[0044] The sixth sub-control module is electrically connected to the main control module, and the sixth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0045] 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 the main coolant valve installed on the engine through the thermal management ball valve.

[0046] In one optional implementation, the traction motor control module includes: an eighth sub-control module;

[0047] The eighth sub-control module is electrically connected to the main control module, and the eighth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0048] The eighth sub-control module is electrically connected to the first three-phase full-bridge inverter unit. The first three-phase full-bridge inverter unit is based on the alternating conduction of switching elements to realize the corresponding transformation of DC power supply by controlling six switches in order to drive the corresponding traction motor.

[0049] The integrated starter generator control module includes: a ninth sub-control module;

[0050] The ninth sub-control module is electrically connected to the main control module, and the ninth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0051] The ninth sub-control module is electrically connected to a second three-phase full-bridge inverter unit. The second three-phase full-bridge inverter unit uses the alternating conduction of switching elements to control six switches to achieve corresponding conversion of DC power supply in order to drive the corresponding ISG motor.

[0052] In one optional implementation, the slow-charging module includes: a tenth sub-control module;

[0053] The tenth sub-control module is electrically connected to the main control module, and the tenth sub-control module is electrically connected to the power chip, which is also electrically connected to the main control module.

[0054] The tenth sub-control module is electrically connected to a slow charging port temperature detection circuit. The slow charging port temperature detection circuit acquires the slow charging port voltage signal and sends it to the main control module to detect the slow charging port temperature.

[0055] The fast charging module includes: an eleventh sub-control module;

[0056] 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 also electrically connected to the main control module.

[0057] The eleven sub-control modules are 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 a low level otherwise. The fast charging port temperature detection circuit acquires the slow charging port voltage signal and sends it to the main control module to detect the fast charging port temperature.

[0058] The DC-to-DC converter module is electrically connected to the main control module and the power supply chip. The DC-to-DC converter module is adapted to convert the input high-voltage DC voltage into the required low-voltage DC voltage and provide it to the power supply chip.

[0059] Secondly, this disclosure also provides a control method employing the above-described multi-functional power domain control system for new energy vehicles, comprising:

[0060] The main control module is electrically connected to several functional modules, and each functional module is equipped with a corresponding sub-control module. The sub-control module is electrically connected to a corresponding detection module and execution module, and the detection module of each functional module is electrically connected to the main control module.

[0061] The main control module is configured to directly connect to the detection module of the corresponding functional module according to the currently required function. The detection modules of other 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, generates the corresponding control signal based on the parameter data, and feeds the control signal back to the sub-control module corresponding to the directly connected detection module. The sub-control module controls the corresponding execution module to work according to the control signal.

[0062] The beneficial effects of this invention are that the multi-functional 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 include at least: 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 temperatures, a throttle latch module, a traction motor control module, an integrated starter generator control module, a DC-DC converter module, a slow charging module, and a fast charging module; the main control module and each of the functional modules are mounted 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 shift control module and / or hybrid vehicle control module and / or air conditioning module and / or thermal management module for battery and motor temperature and / or accelerator pedal module and / or traction motor control module and / or integrated starter generator control module and / or DC-DC converter module and / or slow charging module and / or 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. The main control module can immediately feed back the corresponding control signal based on the acquired parameter data, so that the corresponding functional module can immediately execute the corresponding function.

[0063] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0064] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0065] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0066] Figure 1 A schematic diagram of a multi-functional power domain control system for new energy vehicles provided in this disclosure embodiment;

[0067] Figure 2 This is a schematic diagram of the connection of an all-in-one power domain control system for new energy vehicles, provided in an embodiment of the present disclosure.

[0068] Figure 3 This is a schematic diagram of a multilayer structure of a circuit board provided in an embodiment of the present disclosure.

[0069] In the picture:

[0070] 1. Signal layer, 2. Physical layer. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0072] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., 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. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0073] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0074] like Figure 1 and Figure 2 As 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 include at least: 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 temperatures, a throttle latch module, a traction motor control module, an integrated starter generator control module, a DC-DC converter module, a slow charging module, and a fast charging module; the main control module and each of the functional modules are mounted 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 transmission electronic control module and / or shift control module and / or hybrid vehicle control module and / or air conditioning module and / or thermal management module for battery and motor temperature and / or accelerator pedal module and / or traction motor control module and / or integrated starter generator control module and / or DC-DC converter module and / or slow charging module and / or 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. The main control module can immediately feed back the corresponding control signal based on the acquired parameter data, so that the corresponding functional module can immediately execute the corresponding function.

[0075] The engine management module is the engine management system (EMS) used to control and manage the performance of a car engine.

[0076] The automatic transmission electronic control module is the automatic transmission electronic control unit (TCU) responsible for optimizing transmission performance and driving experience.

[0077] The shift control unit (SCU) is a shift control unit that monitors and improves the stability and handling of a vehicle during driving.

[0078] The hybrid vehicle control module is a hybrid vehicle control unit (HCU) that manages the coordinated operation between the electric motor and the internal combustion engine, optimizes energy use, and improves fuel efficiency.

[0079] The air conditioning module is the air conditioning system (Heating Ventilation Air-conditioning and Cooling, HVAC) that regulates the temperature, humidity and air quality inside the vehicle.

[0080] The thermal management module for battery and motor temperature is a thermal management system (TMS) for controlling and optimizing the temperature of various vehicle components, especially the battery and motor.

[0081] The refueling gate module is the refueling gate unit that controls the opening and closing of the refueling gate.

[0082] The traction motor control module is the traction motor (TM) control system used to drive the vehicle and provide power output for vehicle movement.

[0083] An integrated starter generator (ISG) control module is a system that combines engine starting and power generation, improving the overall efficiency and performance of the system.

[0084] A DC-DC converter module is a DC-DC converter that converts the input DC voltage into the required output DC voltage to power the low-voltage electrical appliances in a vehicle.

[0085] A slow-charging module is a slow-charging system that converts alternating current (AC) to direct current (DC) to charge the battery of an electric vehicle.

[0086] A fast charging module is a fast charging system that directly inputs external DC power into the vehicle's battery.

[0087] Each functional module is equipped with a corresponding sub-control module, as well as several detection modules and execution modules electrically connected to the sub-control module. The detection module can be various sensors, 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 achieve the corresponding function.

[0088] In one 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, which is also 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 ceramic solenoid valve, an intake camshaft phasor solenoid valve electromagnet, and an exhaust camshaft phasor solenoid valve electromagnet; the engine oil pump control valve has a circuit including a corresponding power chip, a MOSFET, and a pull-up power supply, wherein when the corresponding power chip applies an electrical signal to the gate of the corresponding MOSFET, the pull-up power supply is short-circuited to ground to control the engine oil pump. The valve body in the control valve opens; the electronic throttle body obtains the electrical signal that the first sub-control module can receive 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 controls the switching of the MOSFET to realize the start and stop of the ignition coil; the ceramic solenoid valve is controlled by the power chip; the solenoid of the intake camshaft phase adjuster solenoid valve has a circuit composed of a corresponding power chip, a MOSFET and a pull-up power supply, and when the corresponding power chip applies an electrical signal to the MOSFET gate, the pull-up power supply is short-circuited to ground to control the valve body in the intake camshaft phase adjuster solenoid valve solenoid to open;

[0089] The solenoid of the exhaust camshaft phasing solenoid valve consists of a corresponding power chip, a MOSFET, and a pull-up power supply. When an electrical signal is applied from the corresponding power chip to the MOSFET gate, the pull-up power supply is short-circuited to ground, controlling the valve body in the exhaust camshaft phasing solenoid valve to open. The first sub-control module can also be electrically connected to an intake camshaft sensor, an exhaust camshaft sensor, an intake pressure and temperature sensor, an oil pressure sensor, a crankshaft sensor, an EGR differential pressure sensor, an EGR temperature sensor, an engine main coolant temperature sensor, an air mass flow sensor, and a front oxygen sensor. These sensors convert physical signals into electrical signals and transmit them to the first sub-control module through a sampling circuit to obtain the required parameter data. The engine oil pump control valve, electronic throttle body, ignition coil, ceramic solenoid valve, etc., can be used as execution modules.

[0090] During the engine management and control process, the first automatic control module and / or the main control module analyze the current engine operating status by real-time detection of electrical signals provided by various corresponding sensors, and make judgments based on the control logic preset by the algorithm. The first automatic control module and / or the main control module achieve precise control of fuel injection quantity by adjusting the voltage of the engine oil pump control valve, change the throttle opening by adjusting the voltage of the electronic throttle body to control the engine intake air volume, control the combustion rate of fuel inside the engine by controlling the ignition coil switch, and introduce a portion of the exhaust gas discharged from the engine back into the combustion chamber by adjusting the on / off state of the ceramic solenoid valve to reduce the combustion temperature and reduce nitrogen oxide (NOx) emissions, ultimately ensuring precise control of the air-fuel ratio.

[0091] In one 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 supply chip, which is also 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 acquires 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 acquired 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 an electrical signal to the main control module; The clutch pressure sensor described above acquires an electrical signal that the second sub-control module can receive through a corresponding pull-up power supply and a current-limiting resistor. An RC filter circuit is used to suppress disturbances. The acquired electrical signal can be sent to the main control module through the second sub-control module, or the clutch pressure sensor can directly send the electrical signal to the main control module. The clutch solenoid valve is controlled by a power chip that outputs a 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 sends it to the main control module and / or the second sub-control module through a sampling circuit. The clutch solenoid valve can serve as an actuation module, and sensors can serve as detection modules.

[0092] During the operation of the automatic transmission, the second automatic control module and / or the main control module analyze the current vehicle driving status by detecting the electrical signals provided by the corresponding sensors in real time, and make a judgment based on the shift logic preset by the algorithm. Then, the second automatic control module and / or the main control module adjust the state of the transmission by controlling the voltage output to the clutch solenoid valve to realize automatic shifting operation.

[0093] In one 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 electrically connected to a power chip, which is also electrically connected to the main control module; the third sub-control module is electrically connected to a P-gear button and a shift lever; the P-gear button has different voltage divider resistors set based on the pressed and released states, and the corresponding state electrical signals are sent to the third sub-control module and / or the main control module for judgment through a sampling circuit; the shift lever obtains the gear position information operated by the user based on a Hall sensor and sends it to the third sub-control module and / or the main control module in PWM form; the power chip can provide the required voltage to the circuits corresponding to the P-gear button and the shift lever.

[0094] During gear adjustment, the third sub-control module and / or the main control module detect the electrical signals of the P gear button and the column shift lever in real time, and adjust the transmission to the appropriate gear in the driving mode based on the shift logic preset by the algorithm.

[0095] In one 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 electrically connected to a power chip, which is also 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 internal sensors to obtain the vehicle's current acceleration state; the brake pedal, based on the Hall effect back magnetism principle, detects the intensity of magnetic flux density to generate two switching signals, which are then converted into high and low level signals by a processing circuit and sent 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 brake pedal; the fourth sub-control module can send the received electrical signals to the main control module.

[0096] During the hybrid power adjustment process, the fourth sub-control module and / or the main control module detect the electrical signals of each corresponding sensor in real time, and determine the working state of the power system based on the preset control strategy and real-time analysis results, such as activating electric mode, internal combustion engine mode or hybrid mode.

[0097] The refueling door module includes: a seventh sub-control module; the seventh sub-control module is electrically connected to the main control module and electrically connected to a power chip, which is also electrically connected to the main control module; the seventh sub-control module is electrically connected to a refueling door position sensor, which is adapted to detect the refueling door position electrical signal, obtain the electrical signal that the main control chip can receive through a pull-up power supply and a current-limiting resistor, and send 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 a 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.

[0098] In one 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, which is also 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 opens or closes by driving the valve core to move through the electromagnetic force generated by excitation, and the evaporator pressure is controlled by a corresponding drive chip; the low-temperature radiator water pump is a centrifugal pump driven by a brushless DC motor, used to drive the evaporator... The coolant flows in the cooling circuit at a preset flow rate, driven by a corresponding driver chip. The fifth sub-control module is also electrically connected to an ambient temperature sensor and an evaporator temperature sensor. In the temperature sensing section, thermocouples or thermistors can provide stable readings over a wide temperature range, ensuring data accuracy. The power chip can provide the required voltage. Parameter data detected by various sensors in the air conditioning module can be directly sent to the main control module or the fifth sub-control module. The fifth sub-control module can send the received parameter data to the main control module. Parameter data can be obtained through electrical signals acquired by the sensors.

[0099] During the cooling demand adjustment process, the fifth sub-control module and / or the main control module detect the electrical signals of each corresponding sensor in real time, and based on the preset control strategy, control the refrigerant flow by adjusting the opening of the electromagnetic expansion valve, and control the speed of the low-temperature radiator water pump to draw coolant from the low-temperature radiator and deliver it to other parts of the system, thereby realizing the dynamic adjustment of coolant flow to meet different cooling needs.

[0100] In one optional embodiment, the thermal management module for battery and motor temperature includes: a sixth sub-control module; the sixth sub-control module is electrically connected to the main control module and electrically connected to a power chip, which is also 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 the main coolant valve installed on the engine via 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 and circulation of engine coolant, and the thermal management ball valve has a position feedback function, the angle position measurement is completed by 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 directly sent to the main control module, or it can be sent to the sixth sub-control module and then sent to the main control module via the sixth sub-control module.

[0101] During the thermal management process, the sixth sub-control module and / or the main control module dynamically adjust the opening of the thermal management ball valve based on a preset control strategy to achieve dynamic adjustment of the coolant flow rate.

[0102] In one 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 electrically connected to a power supply chip, which is also electrically connected to the main control module; the eighth sub-control module is electrically connected to a first three-phase full-bridge inverter unit, which, based on the alternating conduction of switching elements, controls six switches to achieve corresponding conversion of DC power to drive the corresponding traction motor; the first three-phase full-bridge inverter unit, based on the alternating conduction of switching elements, controls six switches to achieve corresponding conversion of DC power, and the first three-phase full-bridge inverter unit mainly consists of four... The system consists of several components: a switch composed of six IGBTs; a DC power supply with a stable DC voltage provided by a battery; an output filter to smooth the AC waveform and reduce high-frequency harmonics; a driver chip to control the conduction state of the IGBTs; an eighth sub-control module that is also electrically connected to a current sensor for detecting the output current; a flyback circuit powered by a flyback transformer driver chip; and a high-voltage detection circuit that reduces the input high-voltage voltage through voltage divider resistors and then uses an isolation chip to electrically isolate the high-voltage and low-voltage sides. The electrical signal is amplified by an ADI chip and then sent to the eighth 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 eighth sub-control module.

[0103] 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 electrically connected to a power chip, which is also 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, which, based on the alternating conduction of switching elements, achieves corresponding DC power conversion by controlling six switches to drive the corresponding ISG motor; the second three-phase full-bridge inverter unit, based on the alternating conduction of switching elements, achieves corresponding DC power conversion by controlling six switches, and the second three-phase full-bridge inverter unit mainly consists 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 to smooth the AC waveform and reduce high-frequency harmonics; a driver chip to control the conduction state of the IGBTs; a ninth sub-control module that is also electrically connected to a current sensor for detecting the output current; a flyback circuit powered by a flyback transformer driver chip; and a high-voltage detection circuit that reduces the input high-voltage voltage through voltage divider resistors and then uses an isolation chip to electrically isolate the high-voltage and low-voltage sides. Its 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.

[0104] In one 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 electrically connected to a power chip, which is also electrically connected to the main control module; the tenth sub-control module is electrically connected to a slow-charging port temperature detection circuit, which acquires the 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 acquires the slow-charging port voltage signal based on the vehicle's common interface, and obtains the electrical signal that the processor can receive through a pull-up power supply and a current-limiting resistor; this detection circuit provides stable readings over a wide temperature range to ensure data accuracy.

[0105] 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 sent directly to the main control module for processing.

[0106] The tenth sub-control module is also electrically connected to the slow charging port electronic lock driver. It outputs PWM through the full-half-bridge driver unit to control the state of the electronic lock. The open or closed state of the slow charging port electronic lock is realized by the detection circuit. This circuit feeds back the state information to the control unit through the pull-up power supply and the current limiting resistor to ensure the correct operation of the lock.

[0107] The fast charging module includes an eleventh sub-control module; the eleventh sub-control module is electrically connected to the main control module and electrically connected to a power chip, which is also 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 a low level otherwise. The fast charging port temperature detection circuit acquires the 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 acquires the charging gun connector signal based on the vehicle's common interface, and uses dual diodes to determine the charging status, outputting a high level when the charging gun is connected and a low level otherwise. The fast charging port temperature detection circuit acquires the slow charging port voltage signal based on the vehicle's common interface, and obtains the electrical signal that the processor can receive through a pull-up power supply and a current-limiting resistor. This detection circuit provides stable readings over a wide temperature range, ensuring data accuracy.

[0108] 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, and quickly extract information. Data can also be sent directly to the main control module for processing.

[0109] The technical solution also includes a low-voltage auxiliary power supply detection circuit, which obtains the slow charging port voltage signal through the vehicle's common interface, and then uses a pull-up power supply and a current-limiting resistor to obtain the electrical signal that the processor can receive; and a relay control circuit, which controls the on / off state of the fast charging interface through a full-half-bridge driver unit.

[0110] The DC-to-DC converter module is electrically connected to the main control module and the power supply chip. This module is adapted to convert the input high-voltage DC voltage into the required low-voltage DC voltage and supply it to the power supply chip. The core of the DC-to-DC converter module consists of a full-bridge converter unit, a low-voltage power supply unit, and a drive unit. The full-bridge converter unit, based on a full-bridge transformation, converts the input high-voltage DC voltage into the required low-voltage DC voltage. The full-bridge converter mainly consists of four parts: switching elements composed of MOSFETs; a transformer for isolation and voltage conversion; an output rectifier that converts AC signals into DC signals; and a filter to smooth the output signal and reduce ripple.

[0111] The low-voltage power supply unit, based on the low-voltage output of the full-bridge converter, provides the required voltage to the remaining modules of the power domain system through the SEPIC circuit. It mainly consists of four parts: a switch composed of four MOSFETs; a power management chip that controls the output voltage; a transformer for isolation and voltage conversion; and a filter to smooth the output signal and reduce disturbances.

[0112] The drive unit achieves output voltage conversion by controlling the switching of the MOSFETs in the full-bridge converter. The flyback circuit, which supplies power to the drive unit, converts the low-voltage output through a flyback transformer.

[0113] The power chip can provide the required voltage to each functional module.

[0114] The circuit board has a multi-layer structure, with each layer corresponding to a core functional module and its circuit connection method. This means that the detection module within the core functional module is directly electrically connected to the main control module, while the execution module is electrically connected to the sub-control module of that functional module. This allows the parameter data detected by the detection module to be directly sent to the main control module. When the core functional module is switched, the corresponding circuit connection method can be switched to another layer, allowing the detection module of the functional module corresponding to the required execution function to be directly electrically connected to the main control module.

[0115] The specific structure of the circuit board can be as follows: Figure 3 As shown, signal layer 1 is a routing layer. 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 physical board layer 2. In traditional circuit boards, multiple power layers are required to power the components. Power layers are subject to electromagnetic interference, so multiple layers are needed to set up a group of signal layers 1 to avoid electromagnetic interference. However, in this embodiment, the power supply is a separate power supply method. Therefore, only one physical board layer 2 is needed to isolate the two signal layers 1. There is no need to worry about electromagnetic interference. Moreover, since the power layers are removed, more signal layers 1 can be set up in the same volume to meet the wiring requirements of more functional modules.

[0116] In an optional embodiment, a control method employing the above-described multi-functional power domain control system for new energy vehicles is also provided, comprising: a main control module electrically connected to several functional modules, each functional module having a corresponding sub-control module, each sub-control module being electrically connected to a corresponding detection module and an execution module, and the detection module of each functional module being electrically connected to the main control module; the main control module being configured to directly connect to the detection module of the corresponding functional module according to the currently required execution function, while the detection modules of the remaining functional modules are electrically connected to the corresponding sub-control modules; the main control module directly acquires the parameter data detected by the directly connected detection module; the main control module generates a corresponding control signal based on the parameter data; and feeds the control signal back to the sub-control module corresponding to the directly connected detection module; the sub-control module controls the corresponding execution module to operate according to the control signal.

[0117] In some specific examples, when the engine management module is the most important functional module (core functional module) among the required functions, the electrical signals detected and acquired by various sensors and other devices can be directly sent to the main control module. In this case, the first sub-control module does not receive the electrical signals detected by the sensors; instead, the main control module directly generates control signals based on the parameter data corresponding to the electrical signals and sends these control signals to the first sub-control module. The first sub-control module then controls the corresponding actuators such as the engine oil pump control valve, electronic throttle body, ignition coil, ceramic solenoid valve, intake camshaft phasing solenoid valve electromagnet, and exhaust camshaft phasing solenoid valve electromagnet according to the control signals. The actuator operates, and in this case, the first sub-control module only needs to control the actuator module. The main control module handles the processing and judgment of parameter data. The main control module has better performance and can process and judge parameter data more accurately. When the first sub-control module has lower performance, it only needs to control the actuator module, allowing for more accurate control and enabling the required functions of the new energy vehicle to be implemented more accurately and quickly. At this time, the data detected by the sensors of the other functional modules are sent to their respective sub-control modules for data processing and execution module control. Similarly, when other functional modules are core functional modules, the corresponding detection and execution modules have similar workflows.

[0118] When a functional module becomes a core functional module, the data processing of the data detected by its sensors is carried out in the main control module. This allows the main control module, with its superior performance, to process and judge the parameter data more accurately and precisely.

[0119] In summary, this 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 include at least: 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 temperatures, a throttle control module, a traction motor control module, an integrated starter generator control module, a DC-DC converter module, a slow charging module, and a fast charging module; the main control module and each of the functional modules are mounted 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 shift control module and / or hybrid vehicle control module and / or air conditioning module and / or thermal management module for battery and motor temperature and / or accelerator pedal module and / or traction motor control module and / or integrated starter generator control module and / or DC-DC converter module and / or slow charging module and / or 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. The main control module can immediately feed back the corresponding control signal based on the acquired parameter data, so that the corresponding functional module can immediately execute the corresponding function.

[0120] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-functional power domain control system for new energy vehicles, characterized in that, include: The main control module, and several functional modules electrically connected to the main control module; The functional modules include at least: 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 temperatures, a throttle door module, a traction motor control module, an integrated starter generator control module, a DC-DC converter module, a slow charging module, and a fast charging module. The main control module and each of the functional modules are all mounted on the circuit board. 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 battery and motor temperature and / or the accelerator pedal 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. The circuit board has a multi-layer structure, with the upper and lower signal layers isolated by physical board layers. The signal layers are wiring layers, and each signal layer corresponds to a circuit connection method with a functional module as the core. The main control module is electrically connected to several functional modules, and each functional module is equipped with a corresponding sub-control module. The sub-control module is electrically connected to a corresponding detection module and 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 function. The detection modules of other 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, generates the corresponding control signal according to the parameter data, and feeds the control signal back to the sub-control module corresponding to the directly connected detection module. The sub-control module controls the corresponding execution module to work according to the control signal. 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 the power chip, which is also electrically connected to the main control module. The first sub-control module is electrically connected to the engine oil pump control valve, electronic throttle body, ignition coil, ceramic solenoid valve, intake camshaft phase adjuster solenoid valve electromagnet and exhaust camshaft phase adjuster solenoid valve electromagnet. The engine oil pump control valve 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 gate of the corresponding MOSFET, the pull-up power supply is short-circuited to ground to control the valve body in the engine oil pump control valve to open. The electronic throttle body obtains the electrical signals that the first sub-control module can receive through a pull-up power supply and a current-limiting resistor; The ignition coil includes a transformer and a MOSFET. The power chip controls the switching of the MOSFET to start and stop the ignition coil. The solenoid valve of the ceramic jar is controlled by a power chip to open and close. The solenoid valve electromagnet of the intake camshaft phase adjuster includes a corresponding power chip, MOSFET and pull-up power supply. When the corresponding power chip applies an electrical signal to the gate of the MOSFET, the pull-up power supply is short-circuited to ground to control the valve body in the solenoid valve electromagnet of the intake camshaft phase adjuster to open. The solenoid of the exhaust camshaft phase adjuster solenoid valve 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, the pull-up power supply is short-circuited to ground to control the valve body in the solenoid of the exhaust camshaft phase adjuster solenoid valve to open. 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 the power chip, which is also 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 the electrical signals that the second sub-control module and / or the main control module can receive through the corresponding pull-up power supply and current-limiting resistor; The clutch pressure sensor obtains the electrical signals that the second sub-control module and / or the main control module can receive through the corresponding pull-up power supply and current-limiting resistor. The clutch solenoid valve is controlled by a power chip that outputs a PWM signal. 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 the power chip, which is electrically connected to the main control module to supply power. The third sub-control module is electrically connected to the P gear button and the shift lever; The P-position button has different voltage divider resistors set according to the pressed and released states. 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 gear 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. 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 the power chip, which is electrically connected to the main control module to supply power. The fourth sub-control module is electrically connected to the accelerator pedal and the brake pedal; The accelerator pedal transmits corresponding electrical signals to the main control module and / or the fourth sub-control module through internal sensors to obtain the current acceleration status of the vehicle. The brake pedal, by detecting the intensity of magnetic flux density, generates two switching signals, which are then processed by the circuit to convert them into high and low level signals and sent to the main control module and / or the fourth sub-control module. The refueling gate 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 the power chip, which is electrically connected to the main control module to supply power. The seventh sub-control module is electrically connected to a refueling door position sensor, which is adapted to detect the refueling door position electrical signal and send it to the main control module and / or the seventh sub-control module.

2. The all-in-one power domain control system for new energy vehicles as described in claim 1, characterized in that: 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 the power chip, which is electrically connected to the main control module to supply power. 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. It opens or closes by driving the valve core to move through the electromagnetic force generated by excitation. The control of the evaporator pressure is realized by the corresponding drive 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 the corresponding driving chip.

3. The all-in-one power domain control system for new energy vehicles as described in claim 1, characterized in that: The thermal management module for battery and motor temperatures 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 the power chip, which is electrically connected to the main control module to supply power. 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 the main coolant valve installed on the engine through the thermal management ball valve.

4. The all-in-one power domain control system for new energy vehicles as described in 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 the power chip, which is electrically connected to the main control module to supply power. The eighth sub-control module is electrically connected to the first three-phase full-bridge inverter unit. The first three-phase full-bridge inverter unit achieves corresponding conversion of DC power supply by controlling six switches through the alternating conduction of switching elements, so as to drive the 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 the power chip, which is electrically connected to the main control module to supply power. The ninth sub-control module is electrically connected to a second three-phase full-bridge inverter unit. The second three-phase full-bridge inverter unit achieves corresponding DC power conversion by controlling six switches through the alternating conduction of switching elements, thereby driving the corresponding ISG motor.

5. The all-in-one power domain control system for new energy vehicles as described in 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 the power chip, which is electrically connected to the main control module to supply power. The tenth sub-control module is electrically connected to a slow charging port temperature detection circuit. The slow charging port temperature detection circuit acquires the 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 the power chip, which is electrically connected to the main control module to supply power. The eleven sub-control modules are 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 a low level otherwise. The fast charging port temperature detection circuit acquires the 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 supply chip. The DC-to-DC converter module is adapted to convert the input high-voltage DC voltage into the required low-voltage DC voltage and provide it to the power supply chip.

6. A control method employing the all-in-one power domain control system for new energy vehicles as described in claim 1, characterized in that, include: The main control module is electrically connected to several functional modules, and each functional module is equipped with a corresponding sub-control module. The sub-control module is electrically connected to a corresponding detection module and 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 function. The detection modules of other 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, generates the corresponding control signal based on the parameter data, and feeds the control signal back to the sub-control module corresponding to the directly connected detection module. The sub-control module controls the corresponding execution module to work according to the control signal.

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