Vehicle attitude detecting device

Abstract

Abstract PURPOSE:To simplify the constitution of this device by using a sensor which can detect directly an inclined state against the road surface of a vehicle without allowing the car height to intervene. CONSTITUTION:A frequency fd of an irregular reflection wave received by a receiver 6 is shifted from a transmitting frequency fs by a Doppler effect caused by a car speed V, the shift quantity is varied together with a radiation angle theta, and when a distance h between a transmitter/a receiver and the road surface, and an interval 2S of the transmitter/the receiver are given, fd can be calculated and the radiation angle theta can be derived. Also, since a radiation angle theta0 in a state that a vehicle is not inclined in the beginning can also be known in advance, an inclination angle gamma=theta-theta0 of the vehicle can be derived. At the time of pitching centering around the transmitter and the receiver 4, 6, as well, although h is varied to some extent in the case of a loaded car, the influence exerted on fd is very small and h is decided to be invariable.

Inventors

• 👤 Yoriichi Tsuji
• 👤 辻　頼一
• 👤 Hiroyuki Nakamura
• 👤 浩之 中村
• 👤 Seiji Okada
• 👤 誠二 岡田

Bibliographic Details