Honda Giken Kogyo Kabushiki Kaisha

Tooru Ikeda

Takashi Nishihara

Shuji Shiraishi

Hironobu Kiryu

Osamu Yamamoto

Yoshimitsu Akuta

Ryoji Mori

Naoki Ohmomo

A wheel speed detecting device for a vehicle having wheel speed detectors for detecting left and right wheel speeds, respectively; a turning state detector for detecting the turning state of the vehicle; and a correcting and calculating device for correcting the wheel speeds on the basis of an output from the turning state detector and for calculating a value representative of the left and right wheel speeds on the basis of the corrected wheel speeds. Thus, an error of wheel speeds detected during turning of the vehicle can be compensated for, thereby determining a correct wheel speed.

Wheel speed detecting device for vehicle

A steering stability control system for a vehicle includes a turning state judging device for judging turning state of the vehicle to output an oversteering signal or an understeering signal, and a steering stability control device for controlling an output torque from an engine on the basis of an output from the turning state judging device. This system further includes a counter-steering judging device capable of judging a counter-steering state of the vehicle and causing the turning state judging device to output an oversteering signal when the counter-steering state is judged. Thus, it is possible to reliably judge the oversteering and the understeering during turning of the vehicle.

Steering stability control system for vehicle

In a traction control system for a vehicle which controls the traction of the driven wheels according to the slip ratio of the driven wheels obtained as a relationship between the vehicle speed and the speed of the driven wheels, the vehicle speed is obtained from the speed of the non-driven wheels. Normally, the average value of the speeds of the non-driven wheels is used as the basis for computing the vehicle speed, but when one of the non-driven wheels is likely to be lifted from the road surface due to the turning maneuver of the vehicle, the speed of one of the non-driven wheels which is higher than that of the other non-driven wheel and is therefore likely to be in contact with the road surface is used for fining the vehicle speed. Thus, the vehicle speed is simply obtained from the speed of the non-driven wheels, but the traction control can be reliably carried out according to a correctly obtained vehicle speed.

Vehicle traction control system

Growing community of inventors

Wako, Japan

Tooru Ikeda