CN114253200A - Vehicle control method based on vehicle-mounted and cloud composite operation, electronic equipment and automobile - Google Patents
Vehicle control method based on vehicle-mounted and cloud composite operation, electronic equipment and automobile Download PDFInfo
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- CN114253200A CN114253200A CN202210195276.4A CN202210195276A CN114253200A CN 114253200 A CN114253200 A CN 114253200A CN 202210195276 A CN202210195276 A CN 202210195276A CN 114253200 A CN114253200 A CN 114253200A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The invention discloses a vehicle control method based on vehicle-mounted and cloud-end composite operation, an electronic device and an automobile. The dual-core composite operation method of the vehicle-mounted controller HCU/VCU and the cloud server matched with the arithmetic unit is adopted, the problem that a single vehicle-mounted vehicle control system is insufficient in operation capability and supports mixed vehicle control strategy operation is solved, self-adaption/self-learning development of the vehicle is realized, and a high-precision control effect is achieved; on the basis of the operation of the vehicle-mounted controller HCU/VCU, a cloud server operation capacity path is bypassed, the advantages of high computing power and high storage capacity of a cloud and the combination of the operation integration capacity of the vehicle-mounted controller are fully exerted, and the algorithm optimization of a vehicle control system is achieved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a vehicle control method based on vehicle-mounted and cloud-end composite operation, electronic equipment and an automobile.
Background
In recent years, under the push of dual pressure of environmental protection and energy conservation, various new energy automobiles represented by electric automobiles are increasingly and widely paid attention and paid attention; in the field of commercial vehicles, mainly including various passenger cars, special vehicles represented by logistics vehicles (trucks), and the like, electric vehicles have the advantages of zero pollution and low operation cost, and have already occupied certain market share under the support of multi-level subsidies of central and local governments, and are continuously and stably developing at a higher acceleration rate at present.
When a new energy automobile control system, particularly a hybrid power system is designed, the contradiction between the increase of the operation requirement and the upper limit of the operation capability of controller hardware exists. Along with the gradual perfection of the car networking service, the cloud computing capability and the stability thereof are gradually improved, part of the operation requirements of the car terminal priority and the big data storage task can be shared, support is provided for a car control system, and the method is suitable for a novel hybrid power control system. However, details such as task allocation of vehicle-mounted HCU/VCU and cloud computing, cloud computing data validity and the like need to be improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a vehicle control method based on vehicle-mounted and cloud-end composite operation, an electronic device and an automobile.
The purpose of the invention is realized by the following technical scheme:
a vehicle control method based on vehicle-mounted and cloud composite operation comprises the following four steps of data input, data operation, result decision and result output;
a data input step: the vehicle-mounted control system receives bus input data and a variable input by a pin, and stores the variable value in an internal register of the vehicle-mounted control system;
a data operation step: executing in two paths, inputting the first path of data into an MCU of the vehicle-mounted control system, and executing the received data by the MCU according to a first control strategy which is stored in an internal register of the HCU in advance and is set to obtain a first operation result; the second path of data is transmitted to a cloud server through a wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed transmission protocol, the cloud server is combined with an arithmetic unit to calculate according to a second control strategy which is stored in the cloud server in advance and set, a second operation result is obtained and data storage is completed, and after execution is completed, the second operation result is transmitted to the wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed cycle and is transferred to the MCU;
and a result decision step: firstly, the MCU judges the validity of the second operation result; if the second operation result is judged to be valid, the MCU combines the second operation result with the first operation result to decide the output result of the current vehicle-mounted control system, and if the second operation result is judged to be invalid, the MCU takes the first operation result as the output result of the current time;
and a result output step: and outputting the output result to a related component of the vehicle-mounted control system through an output module of the vehicle-mounted control system.
Preferably, the vehicle-mounted control system is an HCU/VCU controller, and the HCU/VCU controller includes the MCU, the wireless transmitting/receiving transmission module, an input module, and an output module.
Preferably, the wireless transmitting/receiving transmission module is a 4G transmission unit.
Preferably, the first operation result calculated by the HCU/VCU controller implements basic functions that need to be implemented by the vehicle control system, including but not limited to vehicle operation management/vehicle safety management/vehicle diagnosis management/interface data transceiving management; the cloud server is in charge of calculating other residual demand functions in combination with the calculator, and stores historical data of the vehicle.
Preferably, the arithmetic unit is a computer terminal or a mobile terminal.
Preferably, the step of judging the validity of the second operation result by the MCU specifically comprises:
s11, establishing a verification algorithm in the communication between the vehicle-mounted control system and the cloud server;
s12, adding a data check byte at the tail end of the data paragraph of the data packet sent by the cloud server, wherein the data check byte is calculated by the content of the data packet at the current moment according to the check algorithm;
and S13, the vehicle-mounted control system receives the data packet sent by the cloud server, analyzes the data packet data paragraph without the last byte by using the verification algorithm, analyzes the data content of the data verification byte, and considers that the second operation result is valid when the data content is consistent with the last byte of the data paragraph of the data packet sent by the cloud server.
Preferably, the contract period is between 100ms and 10 s.
The present invention also discloses an electronic device, comprising:
at least one processor; and a memory communicatively coupled to the processor; wherein the content of the first and second substances,
the memory stores instructions executable by the processor, and the instructions are executed by the processor to enable the processor to implement the vehicle control method based on the vehicle-mounted and cloud-end composite operation.
The invention further discloses a vehicle which comprises a vehicle body and the electronic equipment.
The technical scheme of the invention has the following beneficial effects: by adopting a dual-core composite operation method of matching the vehicle-mounted controller HCU/VCU and the cloud server with the arithmetic unit, the problem that the single vehicle-mounted vehicle control system has insufficient arithmetic capability to support mixed vehicle control strategy operation is solved, self-adaption/self-learning development of the vehicle is realized, and a high-precision control effect is achieved; on the basis of the operation of the vehicle-mounted controller HCU/VCU, a cloud server operation capacity path is bypassed, the advantages of high computing power and high storage capacity of a cloud and the combination of the operation integration capacity of the vehicle-mounted controller are fully exerted, and the algorithm optimization of a vehicle control system is achieved.
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FIG. 1: the invention discloses a vehicle control method based on vehicle-mounted and cloud composite operation.
FIG. 2: the invention discloses a detailed flow diagram of data operation steps in a vehicle control method based on vehicle-mounted and cloud combined operation.
Detailed Description
Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.
The invention discloses a vehicle control method based on vehicle-mounted and cloud composite operation. The vehicle-mounted intelligent control system is composed of a vehicle-mounted control system and a cloud computing system. The vehicle-mounted control system is an HCU/VCU controller, and the HCU/VCU controller comprises a controller chip MCU, a wireless transmitting/receiving transmission module, a controller transmitting antenna, and input modules CAN (input), wire (input) and output modules CAN (output), wire (output). The wireless sending/receiving transmission module is a 4G transmission unit. The cloud computing system comprises a cloud server and an arithmetic unit, wherein the arithmetic unit is a computer terminal or a mobile terminal. As is well known to those skilled in the art, the HCU/VCU controller includes, but is not limited to, the above-mentioned modules, and similar ones not strongly related to the present disclosure, such as power modules, are not described in detail herein.
Specifically, the input modules can (input), wire (input) of the HCU/VCU controller are connected to external resources of the controller, such as a battery management system, a motor control system, an engine control system, a transmission control system, and related pin states are input to the HCU/VCU controller.
The wireless transmitting/receiving transmission module is integrally designed on a mainboard of the HCU/VCU controller, so that data required by cloud computing are transmitted to the server side according to an appointed period, and meanwhile, a result calculated by the cloud server is sent back to the HCU/VCU controller. With the current communication technology, the minimum communication period of remote transmitting and receiving signals can be 100ms, the appointed period can be distinguished according to the importance degree of the operation task, the minimum period is 100ms, and the maximum period is 10 s.
The controller transmitting antenna is used for strengthening the signal of data transmission.
The controller chip MCU is mainly responsible for executing the operation of the control strategy of the vehicle control system on the received signals of the input modules CAN (input) and wire (input) to obtain an operation result, judging the effectiveness of the result calculated by the cloud server, performing integrated processing on the effective result and finally deciding the result output by the current HCU/VCU controller. The output modules can (output) and wire (output) realize that the result of the MCU operation is output to other associated systems.
The cloud server is used for storing historical data and control algorithms of the vehicle-mounted controller, and the computer terminal (PC) or the mobile terminal (PHONE) executes operation of the control strategy algorithms.
In the invention, the calculation distribution relationship between a vehicle-mounted control system (HCU/VCU controller) and a cloud server is as follows: the calculation result calculated by the HCU/VCU controller realizes the basic functions required to be realized by the vehicle control system, namely, the calculation strategy with the highest priority is responsible for the vehicle-end controller, and the calculation strategy comprises but is not limited to vehicle operation management/vehicle safety management/vehicle diagnosis management/interface data transceiving management. The cloud server is in charge of calculating other residual demand functions and algorithms with higher calculation demands by combining with the calculator, and is used for storing historical data of the vehicle, supporting vehicle adaptivity, high-precision characteristic recognition, real-time road condition recognition and the like, namely, the calculation strategy of the suboptimal priority part is in charge of the cloud. The MCU in the HCU/VCU controller has the highest decision power, and can decide the final output result, thereby ensuring the stability of the vehicle system
The calculation distribution relation between the vehicle-mounted control system and the cloud server is further stable in the future when the wireless communication technology is further stable, and the priority can be equivalently exchanged, so that the method is also within the protection scope of the invention.
The vehicle control method based on the vehicle-mounted and cloud-end composite operation disclosed by the invention is described in detail as follows, and as shown in fig. 1, the vehicle control method comprises the following four steps of data input step, data operation step, result decision step and result output step.
A data input step: the vehicle-mounted control system receives bus input data and a variable input by a pin, and stores the variable value in an internal register of the vehicle-mounted control system; the variables input by the pins belong to input information data calculated by an operation system (HCU/VCU controller and cloud server), and both the variables are required to be used.
A data operation step: the received data are executed in two paths, specifically as shown in fig. 2, the first path of data is input into an MCU of the vehicle-mounted control system, and the MCU executes the received data according to a first control strategy pre-stored in an internal register of the HCU, so as to obtain a first operation result; and the second path of data is transmitted to the cloud server through the wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed transmission protocol, the cloud server is combined with the arithmetic unit to calculate according to a second control strategy which is stored in the cloud server in advance and set, a second operation result is obtained and data storage is completed, and after execution is completed, the second operation result is transmitted to the wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed cycle and is transferred to the MCU. The two-way data allocation rule is as described above and will not be described herein.
And a result decision step: firstly, the MCU judges the validity of the second operation result; if the second operation result is judged to be valid, the MCU combines the second operation result with the first operation result to decide the output result of the current vehicle-mounted control system, and if the second operation result is judged to be invalid, the MCU takes the first operation result as the output result of the current time.
And a result output step: and outputting the output result to a related component of the vehicle-mounted control system through an output module of the vehicle-mounted control system.
The specific steps of judging the validity of the second operation result by the MCU are as follows:
s11, establishing a verification algorithm in the communication between the vehicle-mounted control system and the cloud server;
s12, adding a data check byte at the tail end of the data paragraph of the data packet sent by the cloud server, wherein the data check byte is calculated by the content of the data packet at the current moment according to the check algorithm;
and S13, the vehicle-mounted control system receives the data packet sent by the cloud server, analyzes the data packet data paragraph without the last byte by using the verification algorithm, analyzes the data content of the data verification byte, and considers that the second operation result is valid when the data content is consistent with the last byte of the data paragraph of the data packet sent by the cloud server.
Those skilled in the art should understand that the validity judgment method is implemented as described above, but not limited to the above judgment method, and may also be implemented in parallel by multiple validity judgment methods.
And when the second operation result is judged to be valid, the MCU combines the second operation result with the first operation result. This combination is embodied in software code, and particularly also needs to be combined with how the second operation result is used in the vehicle HCU/VCU controller, the general method: and when the second operation result is valid, integrating the second operation result into the code in the software code, and when the second operation result is invalid, not receiving the current second operation result in the software code, and executing the operation by the software according to the control strategy set by the vehicle-mounted HCU/VCU controller.
For example:
1. the cloud server calculates an average energy consumption value of a vehicle (the vehicle energy consumption is increased, the number of data sampling points is increased, and the result is closer to the reality) by acquiring the battery voltage/current of 7 or 14 continuous days and the data of the whole vehicle speed from the vehicle operation data uploaded by the vehicle-mounted HCU/VCU controller;
2. the operation result of the cloud server is sent to the HCU/VCU controller, and the validity of the operation result is judged;
3. when the operation result is valid, the HCU/VCU controller sends the vehicle average energy consumption value at the current moment to the instrument display module; when the operation result is valid, the HCU/VCU controller sends the valid vehicle average energy consumption value at the previous moment to the instrument display module.
The present invention also discloses an electronic device, comprising:
at least one processor; and a memory communicatively coupled to the processor; wherein the content of the first and second substances,
the memory stores instructions executable by the processor, and the instructions are executed by the processor to enable the processor to implement the vehicle control method based on the vehicle-mounted and cloud-end composite operation.
The invention further discloses a vehicle which comprises a vehicle body and the electronic equipment.
The technical scheme of the invention has the following beneficial effects: by adopting a dual-core composite operation method of matching the vehicle-mounted controller HCU/VCU and the cloud server with the arithmetic unit, the problem that the single vehicle-mounted vehicle control system has insufficient arithmetic capability to support mixed vehicle control strategy operation is solved, self-adaption/self-learning development of the vehicle is realized, and a high-precision control effect is achieved; on the basis of the operation of the vehicle-mounted controller HCU/VCU, a cloud server operation capacity path is bypassed, the advantages of high computing power and high storage capacity of a cloud end and the combination of the operation integration capacity of the vehicle-mounted controller are fully exerted, algorithm optimization of a vehicle control system is achieved, particularly algorithms needing large data storage capacity support, such as vehicle adaptivity, high-precision characteristic identification and real-time road condition identification, can be realized by the cloud end, and the intelligent direction of the vehicle control system is developed.
The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.
Claims (9)
1. The vehicle control method based on vehicle-mounted and cloud composite operation is characterized by comprising the following steps: the method comprises the following four steps of data input, data operation, result decision and result output;
a data input step: the vehicle-mounted control system receives bus input data and a variable input by a pin, and stores the variable value in an internal register of the vehicle-mounted control system;
a data operation step: executing in two paths, inputting the first path of data into an MCU of the vehicle-mounted control system, and executing the received data by the MCU according to a first control strategy which is stored in an internal register of the HCU in advance and is set to obtain a first operation result; the second path of data is transmitted to a cloud server through a wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed transmission protocol, the cloud server is combined with an arithmetic unit to calculate according to a second control strategy which is stored in the cloud server in advance and set, a second operation result is obtained and data storage is completed, and after execution is completed, the second operation result is transmitted to the wireless transmitting/receiving transmission module of the vehicle-mounted control system according to an agreed cycle and is transferred to the MCU;
and a result decision step: firstly, the MCU judges the validity of the second operation result; if the second operation result is judged to be valid, the MCU combines the second operation result with the first operation result to decide the output result of the current vehicle-mounted control system, and if the second operation result is judged to be invalid, the MCU takes the first operation result as the output result of the current time;
and a result output step: and outputting the output result to a related component of the vehicle-mounted control system through an output module of the vehicle-mounted control system.
2. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 1, wherein: the vehicle-mounted control system is an HCU/VCU controller, and the HCU/VCU controller comprises the MCU, the wireless transmitting/receiving transmission module, an input module and an output module.
3. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 2, wherein: the wireless sending/receiving transmission module is a 4G transmission unit.
4. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 2, wherein: the first operation result calculated by the HCU/VCU controller realizes the basic functions of the vehicle control system, including but not limited to vehicle operation management/vehicle safety management/vehicle diagnosis management/interface data receiving and transmitting management; the cloud server is in charge of calculating other residual demand functions in combination with the calculator, and stores historical data of the vehicle.
5. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 4, wherein: the arithmetic unit is a computer terminal or a mobile terminal.
6. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 1, wherein: the specific steps of judging the validity of the second operation result by the MCU are as follows:
s11, establishing a verification algorithm in the communication between the vehicle-mounted control system and the cloud server;
s12, adding a data check byte at the tail end of the data paragraph of the data packet sent by the cloud server, wherein the data check byte is calculated by the content of the data packet at the current moment according to the check algorithm;
and S13, the vehicle-mounted control system receives the data packet sent by the cloud server, analyzes the data packet data paragraph without the last byte by using the verification algorithm, analyzes the data content of the data verification byte, and considers that the second operation result is valid when the data content is consistent with the last byte of the data paragraph of the data packet sent by the cloud server.
7. The vehicle control method based on the vehicle-mounted and cloud combined operation of claim 1, wherein: the contract period is between 100ms and 10 s.
8. An electronic device, comprising:
at least one processor; and a memory communicatively coupled to the processor; wherein the content of the first and second substances,
the memory stores instructions executable by the processor to enable the processor to implement the in-vehicle and cloud-based composite operation vehicle control method according to any one of claims 1 to 7.
9. A vehicle characterized by comprising a vehicle body, and the electronic apparatus according to claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210195276.4A CN114253200A (en) | 2022-03-02 | 2022-03-02 | Vehicle control method based on vehicle-mounted and cloud composite operation, electronic equipment and automobile |
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| CN202210195276.4A CN114253200A (en) | 2022-03-02 | 2022-03-02 | Vehicle control method based on vehicle-mounted and cloud composite operation, electronic equipment and automobile |
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