CN111452631A - New energy automobile integrated control system and control method - Google Patents

New energy automobile integrated control system and control method Download PDF

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Publication number
CN111452631A
CN111452631A CN202010349025.8A CN202010349025A CN111452631A CN 111452631 A CN111452631 A CN 111452631A CN 202010349025 A CN202010349025 A CN 202010349025A CN 111452631 A CN111452631 A CN 111452631A
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China
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unit
vehicle
control unit
control
low
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Inventor
贾立莎
蒋伟宏
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Zhicheauto Technology Beijing Co ltd
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Zhicheauto Technology Beijing Co ltd
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Priority to CN202010349025.8A priority Critical patent/CN111452631A/en
Publication of CN111452631A publication Critical patent/CN111452631A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231Circuits relating to the driving or the functioning of the vehicle
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Abstract

The embodiment of the invention discloses a new energy automobile integrated control system and a control method, wherein the system comprises: the system comprises a micro control unit, and a motor driving unit, a high-side/low-side driving unit, a controller local area network control unit and a power management unit which are respectively connected with the micro control unit. According to the scheme of the embodiment, the acquisition of all parameters and the instruction control of the new energy automobile are managed in an integrated mode, all parameters of the vehicle operation are obtained in a centralized mode through the micro-processing unit, the vehicle operation instruction is generated in a centralized mode, and all control parts are sent through the bus structure to control the vehicle. Directly collects a certain data state through a bus structure and directly controls a corresponding actuator after judgment. The reciprocating signal transmission caused by the split structure in the prior art is avoided, the execution time of the system is shortened, and the resource utilization is more sufficient. The installation is convenient, and space utilization is high, and the design is also more nimble, very big improvement new energy automobile whole car performance and corresponding operating efficiency.

Description

New energy automobile integrated control system and control method
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to an integrated control system and a control method of a new energy automobile.
Background
With the development of automobile technology, new energy automobiles and internet automobiles have seen the growth. Compared with the traditional automobile, the new energy automobile is more inclined to the Internet and intelligentization. Under the trend, new energy automobiles also generate more superior operation experience, and most of the new energy automobiles are attributed to a core component VCU (vehicle control unit) in the automobiles. The VCU can realize adjusting and optimizing various aspects such as automobile power, comfort level, security and energy consumption, and the cooperation big data lets the automobile possess better operability and reliability. As a core control component of the VCU, the vehicle control unit is used for coordinating the duties of various components such as an engine, a driving motor, a gearbox, a power battery and the like, and controls the actions of the controllers of the components after analyzing and calculating the vehicle information by acquiring various vehicle signals, thereby realizing the functions of vehicle driving control, energy optimization control, brake feedback control, network management and the like.
Meanwhile, the new energy automobile also comprises a core component BCM (body control module). The BCM can realize the control of internal and external light, the logical control and automatic function of washing and water scraping, the control of a central door lock, a loudspeaker, defrosting, four-wheel drive control and the like.
Also, the new energy vehicle generally includes a GW (gateway) that carries functions of network interconnection and protocol conversion data exchange.
The VCU BCM GW is an important guarantee and key technology for realizing better car networking and intellectualization of the new energy automobile. Prior art VCU BCM GWs are typically discrete. The VCU and the BCM are respectively responsible for respective control and signal acquisition and carry out information interaction through the gateway. The discrete approach is not optimal either in cost or in MCU resource utilization. On the die, the die is needed, so that the cost is high; on the wire harness and the connector, CAN and multiplex signals are more, the cost is high, and the weight is heavy; on the device, the number of MCU, CAN and power supply is large, and the resource utilization is insufficient; on the PCB, the production manufacturability is required to be considered independently in a discrete mode, and the area is large.
In view of the above, a new integrated control system for a new energy vehicle is needed to solve a series of problems caused by the existing discrete structure.
Disclosure of Invention
The embodiment of the invention aims to solve the technical problem that: the new energy automobile integrated control system and the control method are provided, and various problems of loose structure, high cost, low resource utilization rate and the like caused by a split system in the prior art are solved.
According to an aspect of the invention, a new energy automobile integrated control system is provided, the system comprising: a micro control unit, and a motor driving unit, a high side/low side driving unit, a controller area network control unit and a power management unit which are respectively connected with the micro control unit, wherein,
the micro control unit is used for receiving vehicle running parameters, generating vehicle running control instructions and respectively sending the vehicle running control instructions to the motor driving unit, the high-side/low-side driving unit, the controller local area network control unit and the power management unit for vehicle control;
the motor driving unit is used for respectively driving power source equipment according to the vehicle running control instruction of the micro control unit;
the high-side/low-side driving unit is used for respectively driving low-power equipment according to a vehicle running control instruction of the micro control unit;
the controller local area network control unit is used for acquiring/transmitting data control information of the vehicle body, the power and the chassis;
and the power supply management unit is used for acquiring system power supply information and carrying out system power supply management according to the instruction of the micro control unit.
Optionally, the system further comprises a digital signal acquisition unit connected with the micro control unit, and configured to acquire a vehicle driving switch signal and send the vehicle driving switch signal to the micro control unit.
Optionally, the vehicle travel switch signal includes: a door catch switch, a seat belt switch or/and a feedback signal.
Optionally, the system further comprises a high-frequency signal receiving unit connected with the micro control unit, and the high-frequency signal receiving unit is used for receiving the vehicle running feedback high-frequency signal and sending the vehicle running feedback high-frequency signal to the micro control unit.
Optionally, the vehicle running feedback high frequency signal comprises: the high-frequency signal that the intelligent key sent in the no key start-up process.
Optionally, the system further includes a low-frequency signal receiving unit connected to the micro control unit, and configured to receive a low-frequency antenna signal and send the low-frequency antenna signal to the micro control unit.
Optionally, the vehicle running feedback high frequency signal comprises: and in the keyless starting process, the low-frequency antenna sends a low-frequency signal to the intelligent key.
Alternatively, the power source apparatus includes: control motors for windows, mirrors and/or locks.
Optionally, the low power device comprises: the device comprises a vehicle lamp, a relay, a buzzer, a motor or/and a loudspeaker.
Optionally, the system further comprises a pulse signal acquisition unit connected with the micro control unit, and the pulse signal acquisition unit is used for acquiring and controlling a pulse signal.
Optionally, the acquiring and controlling of the pulse signal includes: and acquiring and controlling a collision signal, a wheel speed signal, a backlight signal or/and a buzzer signal.
Optionally, the system further comprises an analog signal acquisition unit connected to the micro control unit, for acquiring and controlling an analog signal.
Optionally, the acquisition and control of the analog signal comprises: the method is used for collecting and controlling a glass lifting signal, a braking stroke signal, an accelerator pedal signal, a master cylinder pressure signal or/and a kettle liquid level signal.
Optionally, the system further comprises a reference power supply unit connected to the micro control unit for generating a vehicle control reference power supply signal.
Optionally, the system further includes a low-cost serial communication network unit connected to the micro control unit, and configured to collect and control the low-cost serial communication signal.
Optionally, the low-cost serial communication signal includes: steering wheel keys or combination switch signals. Optionally, the micro control unit further comprises:
and at least two micro control modules arranged in parallel receive vehicle running parameters in a division manner, generate vehicle running control instructions and perform function control.
Optionally, the controller area network control unit includes a controller area network bus structure; and acquiring/transmitting data control information of the vehicle body, the power and the chassis through the controller local area network bus structure.
Optionally, the controller area network bus structure is further configured to collect a connection switch signal, a high-frequency signal, a low-frequency signal, a pulse signal, and an analog signal, and transmit a motor drive, a high-side/low-side drive, and a power management signal.
According to another aspect of the invention, a new energy automobile integrated control method is provided, which comprises the following steps:
after vehicle operation switch signals, high-frequency signals, low-frequency signals, pulse signals and analog signals are collected, the microcontroller unit comprehensively generates vehicle running parameters;
generating a vehicle running control instruction according to the vehicle running parameters;
and sending the vehicle running control command to control each control component of the vehicle through motor driving, high-side/low-side driving, power supply management and a controller local area network, and controlling the vehicle to run.
Optionally, the method further comprises:
acquiring the vehicle operation switch signal, the high-frequency signal, the low-frequency signal, the pulse signal and the analog signal through a controller local area network bus structure and transmitting the signals to the micro-processing unit; and transmits motor drive, high side/low side drive, power management signal through controller local area network bus structure to control each control part of the vehicle.
Optionally, the method further comprises:
the microprocessor unit comprises at least two micro control modules which are arranged in parallel, and the micro control modules are used for receiving vehicle running parameters in a division mode, generating vehicle running control instructions and performing function control.
According to another aspect of the present invention, there is provided an electronic apparatus including:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory, and when the computer program is executed, implementing any of the methods described above.
According to another aspect of the invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the methods described above.
Based on the new energy automobile integrated control scheme provided by the embodiment of the invention, the acquisition of each parameter and the instruction control of the new energy automobile are managed in an integrated manner, each parameter for vehicle operation is obtained in a centralized manner through a micro-processing unit, a vehicle operation instruction is generated in a centralized manner, and each control component is sent through a bus structure to control the vehicle. Directly collects a certain data state through a bus structure and directly controls a corresponding actuator after judgment. The reciprocating signal transmission caused by the split structure in the prior art is avoided, the execution time of the system is shortened, and the resource utilization is more sufficient. The real-time performance of data interaction ability and control is greatly improved, the installation is convenient, the space utilization rate is high, the design is more flexible, and the whole performance of the new energy automobile and the corresponding operation efficiency are greatly improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The invention will be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an integrated control system of a new energy vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an integrated control system of a new energy vehicle according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an integrated control system of a new energy vehicle according to an embodiment of the present invention.
Fig. 4 is a schematic flow chart of a new energy vehicle integrated control method according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
As shown in fig. 1, the schematic structural diagram of the new energy automobile integrated control system provided in this embodiment includes a micro control unit 11, and a motor driving unit 12, a high-side/low-side driving unit 13, a controller area network control unit 14, and a power management unit 15 respectively connected thereto, wherein,
the micro control unit 11 is configured to receive vehicle driving parameters, generate a vehicle driving control command, and send the vehicle driving control command to the motor driving unit 12, the high-side/low-side driving unit 13, the controller area network control unit 14, and the power management unit 15, respectively, to perform vehicle control.
The micro control Unit 11, i.e. a Micro Controller Unit (MCU), may be a conventional single chip. The MCU is a core power electronic unit special for the new energy automobile, and controls the motor to output specified torque and rotating speed by receiving a vehicle running control command so as to drive the vehicle to run. The direct current electric energy of the power battery is converted into the required high-voltage alternating current, and the motor body is driven to output mechanical energy. Meanwhile, the MCU has the functions of motor system fault diagnosis protection and storage.
The MCU hardware circuit can adopt a modularized and platformized design concept, the power driving part adopts a circuit design with multiple diagnosis protection functions, and the power loop part adopts an automobile-grade IGBT module parallel connection technology, a customized bus capacitor and an integrated bus design; the structure part adopts the design of high protection level and integrated liquid cooling.
And the motor driving unit 12 is configured to drive various power source devices according to the vehicle running control instruction of the micro control unit 11.
Motor Driver is connected with various power source devices arranged on the vehicle through a bus structure, namely various motors, and drives the motors. For example, it can be used to control windows, mirrors, door locks, etc.
The high-side/low-side driving unit 13 is configured to drive various types of low-power devices according to the vehicle driving control instruction of the micro control unit 11.
High side/low side drive (HS SW/L S SW), high side drive means that the drive device is enabled by closing the switch on the power cord directly in front of the electrical equipment or drive device, and low side drive means that the drive device is enabled by closing the ground cord after the electrical equipment or drive device.
And the controller area network control unit 14 is used for acquiring/transmitting data control information of the vehicle body, the power and the chassis.
The controller area network CAN be a common CAN bus network structure. CAN belongs to a bus type serial communication network, and has outstanding reliability, real-time performance and flexibility compared with a common communication bus. The system can work in a multi-master mode, a multi-machine backup system is conveniently formed, any node on the network sends information, and the node information is divided into different priorities according to different system instantaneity; CAN adopts short message filtering to realize point-to-point, group or global broadcasting data transmission modes.
And acquiring/transmitting data control information of the vehicle body, the power and the chassis through the CAN bus.
And the power management unit 15 is configured to obtain system power information and perform system power management according to an instruction of the micro control unit 11.
In one embodiment of the invention, the system further comprises a digital signal acquisition unit 16 connected to the micro control unit 11.
And the digital signal acquisition unit 16 is used for acquiring a vehicle running switch signal and sending the vehicle running switch signal to the micro control unit 11.
The digital signal acquisition unit 16 is an NPN digital signal acquisition, and mainly includes a door catch switch, a seat belt switch, a feedback signal, and the like.
In one embodiment of the invention, the system further comprises a high frequency signal acquisition unit 17 connected to the micro control unit 11.
And the high-frequency signal receiving unit 17 is used for acquiring a vehicle running feedback high-frequency signal and sending the high-frequency signal to the micro control unit 11.
The high-frequency signal receiving unit 17, namely L EWIS RX +: is used for receiving and collecting high-frequency signals when a keyless entry (PEPS) function is realized.
In one embodiment of the present invention, the system further comprises a low frequency signal receiving unit 18, namely L F Driver & RX, connected to the micro control unit 11, mainly for low frequency antenna signal reception and low frequency driving.
The low-frequency signal receiving unit 18 is configured to collect a low-frequency antenna signal and send the low-frequency antenna signal to the micro control unit 11 when a keyless entry (PEPS) function is implemented.
Keyless entry systems, which means that the user is simply in the vicinity of the car and does not have to remove the key or smart card. The wake-up mode in the in-vehicle radio frequency identification transceiver can be activated by simply pulling the door handle of the driver's seat. At this time, the RFID transceiver scans the surrounding area to identify and search the specific code of the RFID chip embedded in the key or smart card. Once found, the security algorithm will determine whether the chip is legitimate and decide whether to open the door, thereby improving the convenience of the user entering the vehicle. The process mainly comprises the following steps:
the car owner carries the intelligent key to come to the car limit, through sliding door handle or pressing the button, tells the car i will unblank. At this time, the door handle/button sends a starting signal to the low-frequency antenna;
the low-frequency antenna sends out a low-frequency antenna signal;
the intelligent key receives the low-frequency antenna signal and then sends out a high-frequency signal;
and receiving a high-frequency signal and informing the unlocking of the vehicle.
In one embodiment of the invention, the system further comprises a pulse signal acquisition unit 19 connected to the micro control unit 11.
And the pulse signal acquisition unit 19 is used for acquiring and controlling pulse signals.
The pulse signal collecting unit 19 is a PWM pulse signal collecting unit, and mainly collects a collision signal, a wheel speed signal, a backlight signal, a buzzer signal, and the like.
In one embodiment of the invention, the system further comprises an analog signal acquisition unit 20 connected to the micro control unit 11.
The analog signal acquisition unit 20 is used for acquiring and controlling analog signals.
The analog signal acquisition unit 20 is an AD analog signal acquisition unit, and mainly acquires a glass lifting signal, a brake stroke signal, an accelerator pedal signal, a master cylinder pressure signal, a kettle liquid level signal, and the like.
In one embodiment of the invention, the system further comprises a reference power supply unit 21 connected to the micro control unit 11 for generating a vehicle control reference power supply signal.
The reference power supply unit 21 includes a Vref reference power supply, mainly a brake stroke reference power supply, an accelerator pedal reference power supply, and the like.
In one embodiment of the invention, the system further comprises a low-cost serial communication network unit 22 connected to the micro control unit 11 for low-cost serial communication signal acquisition and control.
The low-cost serial communication network unit 22 mainly includes L IN for transmitting information such as steering wheel keys and combination switches.
In an embodiment of the present invention, two micro control modules arranged in parallel are disposed in the micro control unit 11, and receive the vehicle driving parameters in a time division manner, and generate a vehicle driving control command for performing function control.
In one embodiment of the present invention, the controller area network control unit 14 includes a controller area network bus structure; and acquiring/transmitting data control information of the vehicle body, the power and the chassis through the controller local area network bus structure.
In an embodiment of the present invention, the controller area network bus structure is further configured to collect a connection switch signal, a high frequency signal, a low frequency signal, a pulse signal, and an analog signal, and transmit a motor drive, a high side/low side drive, and a power management signal.
As shown in fig. 2, a schematic structural diagram of the new energy vehicle integrated control system provided in this embodiment is shown. Fig. 3 is a schematic structural diagram of a specific new energy vehicle integrated control system provided in this embodiment, wherein,
SBC, system power management.
L IN, low-cost serial communication network for transmitting information such as steering wheel keys and combination switches.
And the CAN is a controller local area network for transmitting information such as vehicle body data, power data, chassis data and the like.
L F Driver & RX Low frequency antenna signal reception and Low frequency drive.
L EWIS RX +: high frequency reception for implementing PEPS functionality.
The Motor Driver is driven by a Motor and is used for controlling vehicle windows, rearview mirrors, door locks and the like.
HS SW/L S SW is high-side and low-side driving and mainly drives the car light, the relay, the buzzer, the motor, the loudspeaker and the like.
Vref: and the reference power supplies mainly comprise a brake stroke reference power supply, an accelerator pedal reference power supply and the like.
NPN is digital signal acquisition, mainly including door knob switch, safety belt switch and feedback signal.
PWM is pulse signal acquisition, mainly including collision signal, wheel speed signal, backlight signal, buzzer signal, etc.
And AD, analog signal acquisition, which is mainly used for acquiring a glass lifting signal, a braking stroke signal, an accelerator pedal signal, a master cylinder pressure signal, a kettle liquid level signal and the like.
In each embodiment of the invention, the functions and input and output signals of the VCU BCM GW are analyzed as follows:
for CAN and L IN communication, after BCM collects certain data state information, the information is sent to VCU through CAN bus, and after VCU judges the received information, the information is fed back to BCM through CAN bus, that is, the information CAN be received and sent at least once between two controllers to complete corresponding functions.
The input signals collected by the VCU, the BCM and the GW are basically switch signals, analog signals and frequency signals, after integration, part of repeatedly collected signals can be combined into one path of collection, the quantity of collected signals can be greatly reduced, and corresponding control signals can also be combined to reduce the quantity.
For high-low side drive, the VCU and the BCM drive the same device together, and after integration, the master control system can be combined into one drive.
IN summary, the integration scheme provided by the embodiment of the present invention CAN save at least 7 paths of CAN, 2 paths of L IN, 1 path of PWM acquisition, 2 paths of high-side driving, and 1 path of digital signal acquisition on the device, and simultaneously the area of the PCB, the PIN number of the connector, and the wiring harness are all reduced.
The VCU and BCM respectively have the same functions of the MCU required by the acquisition and the receiving of the input signals, such as CAN, L IN, I/O, ADC and PWM, for output control, the functions are realized by high-low side drive.
From the die and PCB area of VCU BCM GW, the number and complexity of the integrated system solution provided by the present invention are improved after integration, as shown in the following table:
Item VCU BCM GW integration scheme
PCB
1 1 1 1
Die set 1 1 1 1
TABLE 3
In summary, the integrated control system provided by the invention has the following advantages:
the system has the advantages of shortening the execution time, fully utilizing resources, reducing MCU, SBC, CAN, L IN, HS, L S and peripheral devices, reducing the area of a PCB, the PIN number of the connector, the wiring harness and the die.
As shown in fig. 4, a schematic diagram of a principle of an integrated control method for a new energy vehicle according to an embodiment of the present invention is provided, wherein,
step 41, after collecting a vehicle running switch signal, a high-frequency signal, a low-frequency signal, a pulse signal and an analog signal, a microcontroller unit comprehensively generates vehicle running parameters;
step 42, generating a vehicle running control instruction according to the vehicle running parameters;
and 43, sending the vehicle running control command to control each control component of the vehicle through motor driving, high-side/low-side driving, power management and a controller local area network, and controlling the vehicle to run.
In one embodiment of the invention, the method further comprises:
acquiring the vehicle operation switch signal, the high-frequency signal, the low-frequency signal, the pulse signal and the analog signal through a controller local area network bus structure and transmitting the signals to the micro-processing unit; and transmits motor drive, high side/low side drive, power management signal through controller local area network bus structure to control each control part of the vehicle.
In one embodiment of the invention, the method further comprises:
the microprocessor unit comprises at least two micro control modules which are arranged in parallel, and the micro control modules are used for receiving vehicle running parameters in a division mode, generating vehicle running control instructions and performing function control.
An embodiment of the present invention further provides an electronic device, including:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory, and when the computer program is executed, implementing the method of any of the above embodiments.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the method described in any of the above embodiments.
Based on the new energy automobile integrated control scheme provided by the embodiment of the invention, the acquisition of each parameter and the instruction control of the new energy automobile are managed in an integrated manner, each parameter for vehicle operation is obtained in a centralized manner through a micro-processing unit, a vehicle operation instruction is generated in a centralized manner, and each control component is sent through a bus structure to control the vehicle. Directly collects a certain data state through a bus structure and directly controls a corresponding actuator after judgment. The reciprocating signal transmission caused by the split structure in the prior art is avoided, the execution time of the system is shortened, and the resource utilization is more sufficient. The real-time performance of data interaction ability and control is greatly improved, the installation is convenient, the space utilization rate is high, the design is more flexible, and the whole performance of the new energy automobile and the corresponding operation efficiency are greatly improved.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The method and apparatus of the present invention may be implemented in a number of ways. For example, the methods and apparatus of the present invention may be implemented in software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless specifically indicated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as a program recorded in a recording medium, the program including machine-readable instructions for implementing a method according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. The new energy automobile integrated control system is characterized by comprising: a micro control unit, and a motor driving unit, a high side/low side driving unit, a controller area network control unit and a power management unit which are respectively connected with the micro control unit, wherein,
the micro control unit is used for receiving vehicle running parameters, generating vehicle running control instructions and respectively sending the vehicle running control instructions to the motor driving unit, the high-side/low-side driving unit, the controller local area network control unit and the power management unit for vehicle control;
the motor driving unit is used for respectively driving power source equipment according to the vehicle running control instruction of the micro control unit;
the high-side/low-side driving unit is used for respectively driving low-power equipment according to a vehicle running control instruction of the micro control unit;
the controller local area network control unit is used for acquiring/transmitting data control information of the vehicle body, the power and the chassis;
and the power supply management unit is used for acquiring system power supply information and carrying out system power supply management according to the instruction of the micro control unit.
2. The system of claim 1, further comprising a digital signal acquisition unit connected to said micro control unit for acquiring vehicle travel switch signals and sending said signals to said micro control unit.
3. The system of claim 2, wherein the vehicle travel switch signal comprises: a door catch switch, a seat belt switch, or a feedback signal.
4. The system of claim 1, further comprising a high frequency signal receiving unit connected to the micro control unit for receiving vehicle travel feedback high frequency signals and sending them to the micro control unit.
5. The system of claim 4, wherein the vehicle travel feedback high frequency signal comprises: the high-frequency signal that the intelligent key sent in the no key start-up process.
6. The system of claim 1, further comprising a low frequency signal receiving unit connected to the micro control unit for receiving a low frequency antenna signal and transmitting it to the micro control unit.
7. The system of claim 6, wherein the vehicle travel feedback high frequency signal comprises: and in the keyless starting process, the low-frequency antenna sends a low-frequency signal to the intelligent key.
8. The system of claim 1, wherein the power source apparatus comprises: control motors for windows, mirrors and/or locks.
9. The new energy automobile integrated control method is characterized by comprising the following steps:
after vehicle operation switch signals, high-frequency signals, low-frequency signals, pulse signals and analog signals are collected, the microcontroller unit comprehensively generates vehicle running parameters;
generating a vehicle running control instruction according to the vehicle running parameters;
and sending the vehicle running control command to control each control component of the vehicle through motor driving, high-side/low-side driving, power supply management and a controller local area network, and controlling the vehicle to run.
10. An electronic device, comprising:
a memory for storing a computer program;
a processor for executing a computer program stored in the memory, and when executed, implementing the method of claim 9.
CN202010349025.8A 2020-04-28 2020-04-28 New energy automobile integrated control system and control method Pending CN111452631A (en)

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Application publication date: 20200728