Power management method for autonomous vehicle
A technology of automatic driving and power management, which is applied to vehicle components, circuits or fluid pipelines, registration/indication of vehicle operation, etc. It can solve problems such as frequent circuit problems, power failure, and low failure rate, and avoid failure risks , avoiding risks, and ensuring the safety of pedestrians
Pending Publication Date: 2022-04-05
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
[0003] As time goes by, the internal wiring harness of the vehicle falls off, the battery aging causes power attenuation, etc. In extreme cases, the vehicle will have a potential power failure risk. Provide enough power to prevent the vehicle from emergency braking and steering according to the intention of automatic driving, and the probability of such a failure phenomenon exists, and the failure rate is not low
[0004] Circuit problems frequently occur during driving, which is unacceptable for self-driving vehicles that require extremely high safety and reliability
When the vehicle is in an unmanned state, due to the failure of the vehicle power supply, the automatic driving will not be able to brake and turn, and the vehicle is in a state of risk of loss of control
Method used
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[0040] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0041] See Figure 1-Figure 3 , a specific embodiment of a self-driving vehicle power management method, during implementation, the power management method can be divided into three scenarios for specific logic and software editing and design. First obtain the electrical parameters of the main battery and auxiliary battery (including voltage, current, cell temperature, cell internal resistance, SOC and SOH parameters) through the battery sensor, and input them to the power management unit through LIN communication; the power management unit is based on the battery sensor The collected electrical parameters generate battery status curves, and analyze and correct the status curves of the main battery and auxiliary batteries. Compared with the preset battery health status curves, the power management unit conducts risk anal...
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The invention relates to an automatic driving vehicle power management method, which comprises the following steps that: when a vehicle wakes up and is ready to start, a power management unit judges whether to close according to storage battery state information; when the vehicle is ready to enter the automatic driving mode, the automatic driving controller firstly reads the state information of the storage battery, judges whether the requirement of the automatic driving mode is met or not according to the state information of the storage battery, and permits the vehicle to enter the automatic driving mode under the condition that the requirement of the automatic driving mode is met; when the vehicle is in the automatic driving mode, when the automatic driving controller reads that the storage battery state information does not meet the requirement of the automatic driving mode, the automatic driving controller applies to exit the automatic driving mode. According to the invention, the problem of out-of-control risk of automatic driving caused by abnormal power supply of the automatic driving vehicle can be avoided, and the effect of reducing the potential safety hazard of automatic driving caused by abnormal power supply is achieved.
Description
technical field [0001] The invention belongs to the technical field of automobile control, and in particular relates to a power management method for an automatic driving vehicle. Background technique [0002] Autopilot, also known as driverless car or computer-driven car, is a smart car that realizes driverless driving through a computer system. Self-driving cars rely on artificial intelligence, visual computing, radar, monitoring devices and global positioning systems to work together to allow computers to automatically and safely operate motor vehicles without any active human operation. [0003] As time goes by, the internal wiring harness of the vehicle falls off, the battery aging causes power attenuation, etc. In extreme cases, the vehicle will have a potential power failure risk. Provide enough power to prevent the vehicle from emergency braking and steering according to the intention of automatic driving, and the probability of such a failure phenomenon exists, and...
Claims
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Login to View More IPC IPC(8): G07C5/08B60R16/033
Inventor 林坚杨海琳
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD