Double-MCU automobile parking control system
A control system and automobile technology, applied in the field of automobile control, can solve problems such as extreme safety conditions, no control, blank period, etc. that cannot be guaranteed to be solved, and achieve the effect of retaining control effect, improving safety, and saving control resources and energy.
Inactive Publication Date: 2022-01-07
深圳卓橙科技有限公司
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Problems solved by technology
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. Although in the prior art it is possible to monitor the operating status of the entire control system by monitoring the MCU unit U1, and to reset the main MCU unit U2 when the main MCU unit U2 is abnormal, it still cannot guarantee to solve some extreme security situations, because the main MCU Unit U2 generally takes a long time. In some cases, when the main MCU unit U2 is abnormal, it is necessary for the main MCU to control the car urgently. At this time, the monitoring MCU unit U1 has not completely reset the main MCU unit U2, and there may be no blank period of control
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[0042] In specific implementation, such as figure 1As shown, the control system in the embodiment of the present application includes a main MCU30 and a sub-MCU20, the sub-MCU20 and the main MCU30 are electrically connected to the input end of the electronic parking controller 10, and the sub-MCU20 is used to obtain The control signal of "the main MCU 30 to the electronic parking controller 10" is used to determine and temporarily store the working state of the electronic parking controller 10; it also includes an exchange switch unit 50, and the exchange switch unit 50 is used to switch the sub-MCU20 / master MCU30 controls the electronic parking controller 10, and the sub-MCU20 is also used for emergency control of the electronic parking controller 10; in the specific implementation of this application, firstly, the sub-MCU20 obtains the "main MCU30 electronic parking The control signal of the controller 10" is to determine and temporarily store the working state of the electr...
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The invention discloses a double-MCU automobile parking control system. The system comprises a main MCU and an auxiliary MCU, the main MCU and the auxiliary MCU are both electrically connected with the input end of an electronic parking controller, and the auxiliary MCU is used for obtaining a control signal of the main MCU to the electronic parking controller so as to determine and temporarily store the working state of the electronic parking controller. The system further comprises an exchange switch unit, the exchange switch unit is used for switching the control right of the auxiliary MCU / the main MCU to the electronic parking controller, and the auxiliary MCU is further used for conducting emergency control on the electronic parking controller. According to the electronic parking controller, the working state of the electronic parking controller can be temporarily stored, the main MCU can be temporarily replaced for control when the main MCU goes wrong, and the control safety can be greatly improved.
Description
technical field [0001] The invention relates to the field of automobile control, in particular to a dual-MCU automobile parking control system. Background technique [0002] Redundant designs such as dual MCUs are very common in automobile parking control, mainly because automobile parking control is related to traffic safety, so for the sake of safety, redundant designs are also valuable, but most redundant designs such as dual MCUs in the prior art The effect is very poor, and can not reflect the real security significance. For example, the prior art discloses a dual-MCU redundant design automotive electronic parking executive controller, which includes a parking switch circuit, a biaxial acceleration sensor unit, a main MCU unit U2 and a monitoring MCU unit U1, and the main MCU unit U2 Control the parking motor by detecting the parking switch circuit and the signal of the biaxial acceleration sensor; monitor the MCU unit U1 to monitor the operation status of the entire c...
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 王洋清刘飞张燕珊
Owner 深圳卓橙科技有限公司