阅读说明：本技术 车辆的动力驱动控制器及车辆 (Power drive controller of vehicle and vehicle ) 是由 郭向鹏 杜承润 刘力杰 于 2021-09-24 设计创作，主要内容包括：本发明涉及车辆技术领域,特别涉及一种车辆的动力驱动控制器及车辆,其中,车辆的动力驱动控制器包括：通讯模块,用于接收整合控制器的控制指令；处理器,处理器集成设置有电机控制单元和同步脱开控制单元,其中,电机控制单元根据控制指令中的驱动信号驱动车辆的驱动电机输出对应扭矩,和/或同步脱开控制单元根据控制指令中的换挡信号驱动车辆的换挡电机执行车辆换挡动作。由此,解决了相关技术中存在的因采用多控制器的方式,导致硬件资源浪费,成本较高,且存在信息安全的问题,降低了车辆的驱动控制器的成本,实现了高聚合低耦合,并且可以提升车辆的舒适性。(The invention relates to the technical field of vehicles, in particular to a power drive controller of a vehicle and the vehicle, wherein the power drive controller of the vehicle comprises: the communication module is used for receiving a control instruction of the integrated controller; the processor is integrally provided with a motor control unit and a synchronous disengagement control unit, wherein the motor control unit drives a driving motor of the vehicle to output corresponding torque according to a driving signal in a control command, and/or the synchronous disengagement control unit drives a gear shifting motor of the vehicle to execute a vehicle gear shifting action according to a gear shifting signal in the control command. Therefore, the problems of hardware resource waste, high cost and information safety in the prior art due to the adoption of a multi-controller mode are solved, the cost of a driving controller of the vehicle is reduced, high aggregation and low coupling are realized, and the comfort of the vehicle can be improved.)

1. A power drive controller of a vehicle, characterized by comprising:

the communication module is used for receiving a control instruction of the integrated controller;

the processor is integrally provided with a motor control unit and a synchronous disconnection control unit, wherein the motor control unit drives a driving motor of the vehicle to output corresponding torque according to a driving signal in the control command, and/or the synchronous disconnection control unit drives a gear shifting motor of the vehicle to execute a vehicle gear shifting action according to a gear shifting signal in the control command.

2. The power drive controller of a vehicle according to claim 1, wherein the processor is a system-on-chip, wherein the motor control unit and the synchronization release control unit are provided on the system-on-chip.

3. The power drive controller of a vehicle according to claim 2, characterized by further comprising:

and the power supply module is used for supplying power to the communication module and the system-on-chip.

4. The power drive controller of a vehicle according to claim 3, wherein a first drive circuit of the motor control unit and a second drive circuit of the synchronous release control unit are provided separately, and both the first drive circuit and the second drive circuit are connected to a power supply circuit of the power supply module.

5. The power drive controller of a vehicle according to claim 1, characterized by further comprising:

a monitoring module for monitoring the actual performance of the processor;

and the limiting module is used for controlling the processor to execute the performance limiting action when the actual performance is greater than a preset threshold value.

6. The power drive controller of a vehicle according to claim 1, characterized by further comprising:

the signal processing module is used for processing the input signal received by the communication module and sending the processed signal to the processor;

and the signal monitoring module is used for monitoring the input signal and judging whether the input signal is abnormal or not.

7. The power drive controller of a vehicle according to claim 1, characterized by further comprising:

the fault monitoring module is used for monitoring whether the processor fails;

the fault diagnosis module is used for diagnosing the fault reason of the processor when the processor is in fault;

and the fault processing module is used for controlling the processor to execute a fault processing action according to the fault reason.

8. The power drive controller of a vehicle according to claim 1, characterized by further comprising:

and the safety module is used for executing safety action on the processor by adopting a preset safety mechanism.

9. A vehicle, characterized by comprising: a power drive controller of a vehicle according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of vehicles, in particular to a power drive controller of a vehicle and the vehicle.

Background

With the development of vehicle Electrical operation, intellectualization, networking and sharing, more and more ECUs (Electronic Control units) are integrated into EEAs (Electronic/Electronic Architecture) of new energy vehicles, and the E/E system is certainly not separated in the EEAs. The traditional EEA has one controller for all regional functions, and one ECU is added for control every time when one function is added, so that nodes of the whole vehicle communication network are more and more, the bus load rate is increased, the cost is increased, and the risk of information safety is increased.

In the related art, a power domain controller performs multi-functional integration of different contents for respective controller units.

However, because a multi-controller manner is adopted, each controller performs some information security, function security, and partial hardware redundancy designs, so that hardware resources are wasted, the overall cost is high, and the existence of network physical nodes is increased, which increases the risk of information security, and a solution is urgently needed.

Disclosure of Invention

In view of this, the present invention is directed to a power drive controller of a vehicle, which solves the problems of hardware resource waste, high cost and information security caused by a multi-controller mode in the related art, reduces the cost of the drive controller of the vehicle, realizes high aggregation and low coupling, and can improve the comfort of the vehicle.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a power drive controller for a vehicle, comprising:

the communication module is used for receiving a control instruction of the integrated controller;

the processor is integrally provided with a motor control unit and a synchronous disconnection control unit, wherein the motor control unit drives a driving motor of the vehicle to output corresponding torque according to a driving signal in the control command, and/or the synchronous disconnection control unit drives a gear shifting motor of the vehicle to execute a vehicle gear shifting action according to a gear shifting signal in the control command.

Further, the processor is a system-on-chip, wherein the motor control unit and the synchronous release control unit are disposed on the system-on-chip.

Further, still include:

and the power supply module is used for supplying power to the communication module and the system-on-chip.

Furthermore, a first driving circuit of the motor control unit and a second driving circuit of the synchronous disconnection control unit are arranged in an isolated manner, and the first driving circuit and the second driving circuit are both connected with a power supply circuit of the power supply module.

Further, still include:

a monitoring module for monitoring the actual performance of the processor;

and the limiting module is used for controlling the processor to execute the performance limiting action when the actual performance is greater than a preset threshold value.

Further, still include:

the signal processing module is used for processing the input signal received by the communication module and sending the processed signal to the processor;

and the signal monitoring module is used for monitoring the input signal and judging whether the input signal is abnormal or not.

Further, still include:

the fault monitoring module is used for monitoring whether the processor fails;

the fault diagnosis module is used for diagnosing the fault reason of the processor when the processor is in fault;

and the fault processing module is used for controlling the processor to execute a fault processing action according to the fault reason.

Further, still include:

and the safety module is used for executing safety action on the processor by adopting a preset safety mechanism.

Compared with the prior art, the power drive controller of the vehicle has the following advantages:

according to the power drive controller of the vehicle, the motor control unit and the synchronous disconnection control unit are deeply integrated, and the same SoC is used for controlling, so that the software synchronization time is better matched, and the actuators run and are switched smoothly, the problems of hardware resource waste, high cost and information safety caused by the adoption of a multi-controller mode in the related technology are solved, the cost of the drive controller of the vehicle is reduced, high aggregation and low coupling are realized, and the comfort of the vehicle can be improved.

Another objective of the present invention is to provide a vehicle, which solves the problems of hardware resource waste, high cost and information security caused by the adoption of a multi-controller manner in the related art, reduces the cost of a driving controller of the vehicle, realizes high aggregation and low coupling, and can improve the comfort of the vehicle.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a vehicle is provided with the power drive controller of the vehicle as described in the above embodiment.

The vehicle and the power drive controller of the vehicle have the same advantages compared with the prior art, and are not described in detail herein.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a block diagram of a power drive controller for a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a power drive controller hardware of a vehicle according to an embodiment of the present invention;

FIG. 3 is a block diagram of a power drive controller of a vehicle according to an embodiment of the present invention;

fig. 4 is a control flowchart of a power drive controller of a vehicle according to an embodiment of the invention;

fig. 5 is a timing control diagram of a power drive controller of a vehicle according to an embodiment of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1 is a block schematic diagram of a power drive controller of a vehicle according to an embodiment of the invention.

Before describing the power drive controller of the vehicle according to the embodiment of the present invention, a power domain controller in the related art will be briefly described.

Specifically, the vehicle-mounted control unit in the related art mainly has a physical integration of a distributed simple accumulation function and domain controller hardware.

For the distributed Control Unit, the Vehicle-mounted Control Unit is divided into a Vehicle Control Unit (VCU), a BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS), a Motor Control Unit (MCU), an E-shift synchronization release Control Unit (E-shift), a Steering Control Unit (EPS), and the like, and each Control Unit is used as an individual network node to interact with other Control units through a communication network;

for the domain control unit, the automobile is divided into a plurality of control domains; and the domain controller is used as a logic relay point in a domain control mode. Transmitting the command to each ECU for control;

however, in both the distributed unit and the domain control unit, because a multi-controller mode is adopted, each controller will perform some information security, function security, and partial hardware redundancy designs, thereby wasting hardware resources, resulting in higher overall cost and increased risk of information security due to the existence of increased network physical nodes.

The invention is based on the above problems, and provides a power drive controller for a vehicle, which can enable software synchronization time to be better matched and actuators to smoothly run and switch through deep integration of a motor control unit and a synchronous disconnection control unit and control of the same processor, thereby solving the problems of hardware resource waste, higher cost and information safety caused by adopting a multi-controller mode in the related technology, reducing the cost of the drive controller for the vehicle, realizing high aggregation and low coupling, and improving the comfort of the vehicle.

As shown in fig. 1, a power drive controller 10 of a vehicle according to an embodiment of the present invention includes: a communication module 100 and a processor 200.

The communication module 100 is configured to receive a control instruction of the integrated controller. The processor 200 is integrally provided with a motor control unit 201 and a synchronous release control unit 202, wherein the motor control unit 201 drives a driving motor of the vehicle to output a corresponding torque according to a driving signal in a control command, and/or the synchronous release control unit 202 drives a shifting motor of the vehicle to execute a vehicle shifting action according to a shifting signal in the control command.

In some embodiments, the processor 200 may be a System on Chip (SoC), in which the motor control unit 201 and the synchronization release control unit 202 are disposed on the SoC.

The communication module 100 may be a Controller Area Network (CAN) communication module, and in order to ensure communication quality, the embodiment of the present invention may select a CAN _ FD or CAN _ XL communication protocol with a larger bandwidth.

Specifically, the power drive controller 10 according to the embodiment of the present invention may deeply integrate the motor control unit 201 and the synchronous decoupling control unit 202 on the processor 200, and the processor 200 may be an SoC, so as to control the operation of the actuator through the SoC, thereby greatly reducing some repetitive software and hardware design contents, reducing the complexity of software and hardware design, and implementing high aggregation and low coupling of the design.

Further, referring to fig. 2, fig. 2 is a schematic diagram of a hardware topology of the power drive controller 10 according to an embodiment of the present invention.

Further, in some embodiments, the power drive controller 10 of the vehicle further includes: a power module 300. The power module 300 is used to supply power to the communication module 100 and the system-on-chip.

Specifically, the power driving controller 10 may adopt the power module 300 to perform uniform voltage power supply, the power supply circuit may be divided into a high voltage power supply circuit and a low voltage power supply circuit, in an embodiment of the present invention, a SBC (system basis chip) may be used to provide corresponding low voltage power supply for each circuit, the high voltage portion forms a high voltage circuit through an XY capacitor and an IGBT, and the system level chip and the gate level circuit unit drive the high voltage circuit.

Further, in some embodiments, as shown in fig. 2, the first driving circuit of the motor control unit 201 and the second driving circuit of the synchronous disconnection control unit 202 are separately disposed, and both the first driving circuit and the second driving circuit are connected to the power supply circuit of the power supply module.

Specifically, the system-on-chip controls a gate-level driving circuit controlled by the brushless motor and a driving circuit composed of Mos, and the first driving circuit and the second driving circuit are physically isolated in the design of the driving board circuit, so that the level of EMC (Electro Magnetic Compatibility) can be better improved.

For ease of understanding, other constituent modules of the power drive controller 10 according to the embodiment of the present invention will be described in detail below with reference to fig. 3. Among them, the power drive controller 10 of the vehicle of the embodiment of the present invention may further include: the device comprises a monitoring module, a limiting module, a signal processing module, a signal monitoring module, a fault diagnosis module, a fault processing module, a safety module and the like.

Further, in some embodiments, as shown in fig. 3, the power drive controller 10 of the vehicle further includes: a monitoring module for monitoring the actual performance of processor 200; and a limiting module for controlling the processor 200 to execute the performance limiting action when the actual performance is greater than the preset threshold.

The preset threshold may be a threshold preset by a user, may be a threshold obtained through a limited number of experiments, or may be a threshold obtained through a limited number of computer simulations, which is not specifically limited herein.

It should be understood that the power drive controller 10 of the embodiment of the present invention may monitor the actual performance of the processor 200 in real time through the monitoring module, thereby controlling the processor 200 to perform the performance limiting action through the limiting module according to the requirement.

Further, in some embodiments, as shown in fig. 3, the power drive controller 10 of the vehicle further includes: the signal processing module is configured to process the input signal received by the communication module 100, and send the processed signal to the processor 200; and the signal monitoring module is used for monitoring the input signal and judging whether the input signal is abnormal or not.

Specifically, the signal processing module may perform corresponding processing on the input signal received by the communication module 100 and then send the processed signal to the processor 200, so that the processor 200 performs corresponding control according to the processed signal. However, if the input signal is abnormal, if the input signal is processed according to the abnormal signal, a certain potential safety hazard exists, so that the embodiment of the invention can also monitor the input signal through the signal monitoring module, judge whether the input signal is abnormal or not, compare the input signal with the preset signal, and judge that the input signal is abnormal if the input signal is inconsistent with the preset signal.

Further, in some embodiments, as shown in fig. 3, the power drive controller 10 of the vehicle further includes: a fault monitoring module for monitoring whether the processor 200 is faulty; a fault diagnosis module for diagnosing the fault reason of the processor 200 when the processor 200 is in fault; and a fault processing module for controlling the processor 200 to execute a fault processing action according to the fault reason.

It should be understood that, to ensure safety, an embodiment of the present invention may be provided with a fault monitoring module, where a fault of the processor 200 is monitored in real time by the fault monitoring module, and if it is monitored that the processor 200 has a fault, the fault of the processor 200 may be diagnosed by the fault diagnosing module, so as to determine a fault cause of the processor 200 according to a preset fault list, and control the processor 200 to perform a fault handling action according to the fault cause. It should be noted that, if there is no fault reason corresponding to the fault in the preset fault list, the fault is added to the preset fault list, and the maintenance personnel is prompted to perform relevant fault processing.

Further, in some embodiments, as shown in fig. 3, the power drive controller 10 of the vehicle further includes: the security module is configured to execute a security action on the processor 200 by using a preset security mechanism.

Wherein, the preset safety mechanism can be obtained by pre-training.

Specifically, to further improve the safety of the power drive controller 10 of the vehicle, the embodiment of the present invention is further provided with a safety module, so that the safety module performs a safety action on the processor 200 by using a preset safety mechanism.

Therefore, the embodiment of the invention adopts the hardware circuit deep integrated motor control unit 201 and the synchronous disconnection control unit 202 to form a highly integrated controller, the highly integrated circuit can effectively reduce the verification and authentication process of data interaction caused by a distributed circuit, and the signal wire is arranged in the middle of a multilayer board in the design of the hardware circuit, so that the information safety level can be effectively increased; and for the software architecture such as diagnosis and flash of control software, some repetitive work contents can be reduced, for example, fault check in interaction and related work contents of each controller fastbootload (fbl) can be reduced in the whole engineering, and the non-functional requirements of each controller are reduced.

In order to further understand the power drive controller of the vehicle according to the embodiment of the present invention, the following detailed description is given with reference to specific embodiments.

As shown in fig. 4, the control method of the power drive controller of the vehicle includes the steps of:

s401, start.

And S402, initializing.

S403, judging whether the initialization is completed or not, if so, executing step S404, otherwise, executing step S402.

S404, judging whether the working condition is met, if so, executing the step S405.

And S405, receiving a motor command and a gear command sent by the VCU.

While step S406 is being executed, steps S407 and S409 are executed.

S406, judging whether the PowerOff (power off) exists, if so, executing the step S416.

S407, entering modes according to the current control mode, wherein the control modes comprise a rotating speed mode, a torque mode and a current mode.

And S408, feeding back the rotating speed and the torque, and skipping to execute the step S405.

And S409, reading the gear state.

And S410, receiving gear information.

S411, judging whether the gear information is changed, if so, executing a step S412, otherwise, executing a step S410.

S412, a BLDC (Brushless Direct Current Motor) Motor is driven to drive the shift fork of the actuator.

And S413, judging whether gear in-place feedback exists or not, if so, executing the step S414, otherwise, executing the step S412.

And S414, feeding back the current gear.

S415, judging whether PowerOff exists or not, if yes, executing step S416, otherwise, executing step S410.

S416, shutdown.

And S417, ending.

Further, with reference to fig. 5, as shown in the working sequence diagram of the power drive controller of the vehicle in fig. 5, after the power drive controller of the vehicle completes initialization, the vehicle controller sends a motor command and a gear command to the power drive controller, the power controller obtains motor control information and gear requirement information according to the motor command, sends the motor control information to the motor, and sends the gear requirement information to the BLCD motor to execute corresponding actions. The power drive controller of the vehicle can also receive gear shifting information sent by the vehicle controller, the power drive controller drives a gear actuator (synchronizer device, namely a BLDC motor is driven to push a shifting fork of a gear shifting structure to combine a synchronous tooth with an output shaft), and simultaneously when a vehicle gear instruction is received, the control mode of the drive motor is controlled to be switched from a torque mode to a speed mode to carry out speed adaptation on the output end, so that the speed synchronization of the motor and the output shaft is realized; after a sensor of the gear actuator detects a gear position signal, the driving motor is switched from a rotating speed mode to a torque mode, and therefore power output of the system is continuously provided.

According to the power drive controller of the vehicle provided by the embodiment of the invention, the motor control unit and the synchronous disconnection control unit are deeply integrated and are controlled by the same processor, so that the software synchronization time is better matched, and the actuators smoothly run and switch, thereby solving the problems of hardware resource waste, higher cost and information safety caused by adopting a multi-controller mode in the related technology, reducing the cost of the drive controller of the vehicle, realizing high aggregation and low coupling, and improving the comfort of the vehicle.

Further, an embodiment of the invention discloses a vehicle provided with the power drive controller of the vehicle described in the above embodiment. The vehicle is provided with the power drive controller of the vehicle, so that the problems of hardware resource waste, high cost and information safety in the prior art due to the adoption of a multi-controller mode are solved, the cost of the drive controller of the vehicle is reduced, high aggregation and low coupling are realized, and the comfort of the vehicle can be improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.