Honda Giken Kogyo Kabushiki Kaisha

Nec Home Electronics, Inc.

Toshiyuki Azuma

Shohei Matsuda

Toshio Yahagi

Morio Sato

Koichi Hikichi

Takashi Okuda

Katsutoshi Kizaki

Seiji Yamashita

A traction control method for a vehicle which includes the steps of generating a braking force in drive wheel brake devices when it is determined that a drive wheel shows a slipping tendency, wherein the control mode for left and right drive wheel brake devices is switchable between an independent mode for independently controlling braking forces in the left and right drive wheel brake devices and a collective control mode for collectively controlling braking forces of these brake devices, and controlling the braking forces of the brake devices in the independent control mode in response to a condition in which the absolute value of a difference between left and right drive wheel speeds exceeds a predetermined value.

Switchable mode traction control method for vehicle

A vehicle height control device that includes a pressure sensor 28 for detecting the pressure of compressed air supplied to pneumatic shock absorbers 10 for pneumatically bearing the load of a vehicle loads applied through the wheels. A control circuit 30 is included for controlling vehicle height based on the pressure detected by the pressure sensor 28. A waveform shaping circuit is connected between the control circuit 30 and the pressure sensor 28 and shapes the waveform to moderate the pressure change while the pressure is rising to a greater degree than while the pressure is dropping. The waveform shaping circuit includes a passive low-pass filter circuit 38, an active low-pass filter circuit 52 and a pair of diodes 70 and 72. The diodes 70 and 72 connected to the active filter circuit 52, allowing rapid capacitor discharge during decreases in signal amplitude while maintaining a slow discharge rate during decreases in signal amplitude.

Vehicle height control apparatus

Growing community of inventors

Osaka, Japan

Toshiyuki Azuma