Patent ID: 7825786
Filing Date: 2010-11-02
Classification: B60G,B60W

Abstract:
1. A vehicle state value detecting device, comprising: a state value detecting unit for detecting a state variable of a vehicle; a first low pass filter that cuts off a high frequency component from an output signal of the state value detecting unit at a first cutoff frequency; a second low pass filter that is connected in parallel with the first lower pass filter and cuts off a high frequency component from an output signal of the state value detecting unit at a second cutoff frequency lower than the first cutoff frequency; a vehicle condition detecting unit for detecting a first condition and a second condition of the vehicle; a signal selecting unit for selecting an output signal of the first low pass filter when the first condition is detected and an output signal of the second low pass filter when the second condition is detected; and a noise determining unit that computes a difference between output signals of the first and second low pass filter, the signal selecting unit selecting the output of the second low pass filter when the difference changes signs by more than a prescribed number of times within a prescribed period.