Brake disc wiper activation device and method

Abstract

The invention discloses a brake disc wiper activation device and method. The brake disc wiper activation device comprises image collection equipment, an environment estimation module and a mediation module, wherein the image collection equipment is suitable for capturing one or more images of a current environment of a vehicle in real time; the environment estimation module is suitable for extracting the current environment of the vehicle from the images and transmitting a first instruction according to the current environment of the vehicle; and the mediation module is suitable for mediatingthe first instruction transmitted by the environment estimation module or a second instruction transmitted by a vehicle body electronic stabilizing system according to a preset mediation strategy anddetermining whether a wiping instruction is transmitted to a brake disc wiper to enable the brake disc wiper to be actively supercharged to finish wiping treatment or not according to a mediation result. According to the brake disc wiper activation device and method, for the current environment of the vehicle, the wiping instruction can be transmitted to the brake disc wiper in time to finish water drop wiping treatment between a brake disc and callipers due to the current environment of the vehicle; and therefore, the braking energy efficiency of the vehicle is guaranteed, and the vehicle isprevented from being in dangers.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a device and method for activating a brake disc wiper. Background technique [0002] Brake Disk Wiper (BDW) is an additional value-added function developed on the basis of the functions of Electronic Stability Program (ESP). When it rains, there is a water film or water droplets between the brake disc and the caliper, which will affect the braking performance. The brake disc wiper wiping command module uses the signal of the rain sensor or wiper sensor as input to estimate whether the current weather is raining or not. rain. When rain is detected, the brake disc wiper wiping instruction module actively applies a certain pressure between the brake disc and the caliper to wipe off the water film or water droplets between the brake disc and the caliper to ensure good braking. Dynamic performance, ensure driving safety. [0003] However, in non-rainy weather, water film or wat...

AI Technical Summary

Problems solved by technology

[0003] However, in non-rainy weather, water film or water droplets will still form between the brake disc and the caliper when the vehicle passes the waterlogged road, but because the rain sensor does not collect enough water at this time or the wiper sensor does not activate, resulting The wiper command module of the moving disk wiper does not meet the activation conditions, and will not actively apply pressure to wipe off the water film or water droplets between the brake disc and the caliper, which will affect the braking performance, such as the braking performance declines, etc.

When the braking efficiency declines, and the driver finds a dangerous situation and performs emergency braking, the braking distance will be longer, and in severe cases, there may be dangers such as car accidents.

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