초록 ▼

A rollover sensing apparatus and method are provided for predicting rollover and/or pitchover conditions of a vehicle. An angular rate sensor senses attitude rate of the vehicle, a first accelerometer measures horizontal acceleration of the vehicle, and a second accelerometer measures vertical accel

A rollover sensing apparatus and method are provided for predicting rollover and/or pitchover conditions of a vehicle. An angular rate sensor senses attitude rate of the vehicle, a first accelerometer measures horizontal acceleration of the vehicle, and a second accelerometer measures vertical acceleration of the vehicle. A current attitude angle is estimated with Kalman filtering and a future attitude angle is predicted at an advance time. The predicted attitude angle is compared to a threshold and an output is produced for indicating a predicted vehicle rollover condition based on the comparison. A vehicle rollover condition about the longitudinal axis of the vehicle is predicted by comparing a future roll angle to a rollover angle threshold, while a pitchover condition about the lateral axis of a vehicle is predicted by comparing a future pitch angle to a pitch angle threshold.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A rollover sensing apparatus for predicting an overturn condition for a vehicle, comprising:an angular rate sensor for sensing attitude rate of a vehicle and producing an output si

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A rollover sensing apparatus for predicting an overturn condition for a vehicle, comprising:an angular rate sensor for sensing attitude rate of a vehicle and producing an output signal indicative thereof;a first accelerometer for measuring horizontal acceleration of the vehicle and producing an output signal indicative thereof;a second accelerometer for measuring vertical acceleration of the vehicle and producing an output signal indicative thereof;a controller for receiving said signals from said angular rate sensor, said first accelerometer, and said second accelerometer and for estimating a current attitude angle, said controller further predicting a future attitude angle as a function of said estimated current attitude angle and said sensed attitude rate, and comparing said predicted future attitude angle to a threshold value; andan output for deploying a vehicle overturn condition output based on said comparison.