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Automobile torque safety control method based on multi-core CPU

A security control and CPU core technology, applied in electric vehicles, vehicle components, electrical devices, etc., can solve problems such as inability to ensure effectiveness and inability to realize torque safety monitoring, so as to prevent unexpected acceleration or deceleration of the vehicle, Monitor Accurate Results

Active Publication Date: 2018-06-12
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is that when the prior art monitors the safety of the automobile torque, the effectiveness of the CPU itself that executes the monitoring program cannot be ensured, and thus the problem that the safety monitoring of the torque cannot be realized

Method used

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  • Automobile torque safety control method based on multi-core CPU

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Embodiment Construction

[0021] Those skilled in the art understand that in the field of torque safety control of automobiles, the prior art is still limited to realizing the monitoring of automobile torque safety by comparing a single technical solution, for example, setting a torque calculation module and a torque monitoring module in the same CPU at the same time module. If the CPU used to run the torque calculation module and the torque monitoring module fails, the torque calculation module and the torque monitoring module will fail at the same time, and the torque safety of the vehicle cannot be monitored any more.

[0022] In the patent application document with application number 201310426286.5, a technical solution is disclosed, "The torque information of the electric vehicle is calculated respectively by the first control unit and the second control unit in the dual-core controller, and the calculation results are verified. When When the first control unit is abnormal, the second control unit...

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Abstract

The invention provides an automobile torque safety control method based on a multi-core CPU. The automobile torque safety control method comprises the following steps that a torque calculation resultis obtained through a first CPU core in the multi-core CPU; whether the torque calculation result of the first CPU core is effective or not is judged through a second CPU core in the multi-core CPU; and whether a working state of the hardware environment where the multi-core CPU is located and / or whether a program running state of the second CPU core are / is effective or not is judged through a third CPU core in the multi-core CPU. According to the technical scheme of the automobile torque safety control method, the problem of the common cause failure risk possibly generated during automobile torque safety control based on the same CPU can be effectively solved, and effectiveness and accuracy of automobile torque safety monitoring are improved.

Description

technical field [0001] The invention relates to the field of system function safety, in particular to an automobile torque safety control method based on a multi-core CPU. Background technique [0002] Car driving safety has always been the primary consideration for consumers when choosing a car. Therefore, how to effectively improve car driving safety has become a top priority for car manufacturers. On the other hand, with the increasing popularity of new energy vehicles, more and more car manufacturers have begun to focus on the vehicle torque safety control of new energy vehicles in order to further enhance the driving safety of new energy vehicles. The vehicle torque safety control of the new energy vehicle may include the vehicle torque security control of the power system of the new energy vehicle, and the system of the power system of the new energy vehicle is determined by judging the rationality of the current output torque of the new energy vehicle. Whether the op...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00
CPCB60L3/0084B60L3/0092
Inventor 朱军冯亚军赵鑫李军强迟永昊
Owner SAIC MOTOR
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