An automotive electronic parking executive controller with dual MCU redundant design
An automotive electronics and controller technology, applied in the direction of brakes, vehicle components, brake safety systems, etc., can solve the problems affecting the safety of automobile parking brakes, crash failures, etc., to achieve reliable operation, enhanced safety, application reliable results
Active Publication Date: 2021-02-19
GELUBO TECH CO LTD
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[0040] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation to the present invention.
[0041] Such as figure 1 As shown, an automotive electronic parking executive controller with dual MCU redundancy design includes a parking switch circuit, a biaxial acceleration sensor unit, a main MCU unit U2 and a monitoring MCU unit U1. The main MCU unit U2 detects the parking switch Circuit and dual-axis acceleration sensor signals are used to control the parking motor; it is a prior art to control the parking motor through the parking switch circuit, the dual-axis acceleration sensor unit, and a single MCU, and will not be repeated here.
[0042] While maintaining the original circuit connection, add dual MCU redundant design control logic. Specifically, the monitoring MCU unit U1 monitors the operating status of the entire control system, and res...
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The invention discloses an automotive electronic parking executive controller with dual-MCU redundant design, relates to the technical field of automotive electronic control, and solves the problem that a single MCU, as a mainstream control device, has a certain risk of crash failure, which may affect the vehicle parking. The problem of vehicle braking safety. Including the parking switch circuit, the biaxial acceleration sensor unit, the main MCU unit U2 and the monitoring MCU unit U1, the main MCU unit U2 executes the control of the parking motor by detecting the parking switch circuit and the biaxial acceleration sensor signal; the monitoring MCU unit U1 monitors the running status of the entire control system, and resets the main MCU unit U2 when the main MCU unit U2 is abnormal; when the monitoring MCU unit U1 is abnormal, the main MCU unit U2 resets the monitoring MCU unit U1. After the main MCU unit U2 crashes, the main MCU unit U2 can still be quickly reset by monitoring the MCU unit U1, so that the main MCU unit U2 can quickly enter the response state, restore the parking brake control ability, and enhance the effect of system security.
Description
technical field [0001] The invention relates to the technical field of automobile electronic control, in particular to an automobile electronic parking executive controller with dual MCU redundancy design. Background technique [0002] The automotive electronic parking brake control system is mainly composed of a microcontroller, an IO processing circuit, an H-bridge drive circuit, a parking switch circuit and a dual-axis acceleration sensor. Microcontroller and H-bridge drive circuit are the core modules of the electronic parking brake system. In the automotive electronic parking brake system, a single MCU is used as the mainstream control device, and there is a certain risk of crash failure, which may affect the safety of the car's parking brake. Contents of the invention [0003] The purpose of the present invention is to provide an automotive electronic parking executive controller with dual-MCU redundancy design. One more monitoring MCU unit U1 is introduced. The MC...
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IPC IPC(8): B60T13/74B60T17/22B60T8/92
CPCB60T13/74B60T17/22B60T8/92B60T7/22B60T2201/10B60T2270/406B60T2270/413B60T7/122B60T8/885B60T2250/00B60T2270/402H02P23/14
Inventor 刘兆勇陈义平顾勤冬
Owner GELUBO TECH CO LTD