BRAKE TEMPERATURE DETECTION DEVICE AND ELECTRIC PARKING BRAKE CONTROL DEVICE

摘要

A brake temperature detection device is configured detect brake temperature more accurately. In a situation in which the temperature in the vicinity of the brake has risen above the atmospheric temperature, indicated by a value read off of the detection signal of the temperature sensor, for example when traveling in congested traffic, a value to correct atmospheric temperature is determined, and atmospheric temperature is corrected on the basis of that atmospheric temperature correction value. Subsequently, brake temperature is calculated on the basis of the corrected air temperature. As a result of this configuration, it is possible to have the calculated brake temperature approach the actual brake temperature. This makes it possible to detect brake temperature more accurately.

主权项

1. A brake temperature detection device for detecting a brake temperature in each control cycle comprising:
means that calculates the amount of increase in brake temperature when a vehicle is braked; cooling temperature calculation means that calculates a brake cooling temperature in accordance with a difference between an atmospheric temperature indicated by a readings indicative of a detection signal of a temperature sensor provided in the vehicle and a brake temperature detected in the previous control cycle when the vehicle is not braked, the brake cooling temperature being a temperature of the brake cooled by natural cooling; brake temperature calculation means that detects a brake temperature in the present control cycle by adding the amount of increase in brake temperature to the brake cooling temperature; and temperature rise judgment means that judges whether a temperature in a wheel house in the vehicle has risen above the atmospheric temperature indicated by the readings indicative of the detection signal of the temperature sensor, wherein when the temperature rise judgment means judges that the temperature in the wheel house has risen above the atmospheric temperature indicated by the readings indicative of the detection signal of the temperature sensor, the cooling temperature calculation means corrects the atmospheric temperature by adding an atmospheric temperature correction value to the atmospheric temperature indicated by the readings indicative of the detection signal of the temperature sensor, and uses the corrected atmospheric temperature to calculate the brake cooling temperature.