Control method, device and vehicle of a vehicle controller

Abstract

The invention provides a vehicle controller control method and device and a vehicle, and relates to the control field of controllers. The problem that the temperature of a vehicle controller can not be reasonably controlled in the prior art is solved. The vehicle controller control method comprises the steps that when a controller is detected in the ignition starting state, whether the controller is in the super-thermal load running state is judged, and an judging result is obtained; when the controller is in the super-thermal load running state, the chip junction temperature of the controller is computed; according to the chip junction temperature and different thermal levels classified in advance, the thermal level of a chip is judged; the controller or a load module is controlled according to the judged thermal level. According to the technical scheme, thermal loss is reduced and internal temperature is controlled on the condition that the controller integrates a large amount of output load, and safety reliability of the controller is ensured.

Description

technical field [0001] The invention relates to the control field of controllers, in particular to a control method, device and vehicle of a vehicle controller. Background technique [0002] As consumers have increasingly higher requirements for vehicle safety, environmental protection and intelligence, OEMs have gradually added many electronic and electrical configuration functions to vehicles in order to meet people's diverse needs for vehicles. Numerous configurations make the functions of the vehicle controller more and more complex, and the output loads controlled are more and more, resulting in excessive heat generation and high temperature rise inside the vehicle controller, resulting in functional failure or device damage of the vehicle controller. [0003] At present, the commonly used methods for reducing the internal temperature of the vehicle controller are as follows: 1. Increase the heat dissipation area of ​​the controller, and realize rapid heat dissipation t...

AI Technical Summary

Problems solved by technology

However, this method increases the size and cost of the controller, and it is difficult to implement under the condition of limited vehicle layout space; 2. When some hardware circuits of the controller reach the limit temperature, the output chip that drives the load is directly turned off, and the output chip is reduced by reducing the output Load to reduce heat dissipation to cool down

This results in the complete failure of some functions of the controller, which greatly affects the safety and comfort of the vehicle.

[0004] When the vehicle controller integrates many output load functions, reducing heat loss and controlling the internal temperature to ensure the safety and reliability of the controller has become a huge difficulty and challenge for the controller design.

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