Mazda Motor Corporation

Minoru Takata

Yoshitaka Kimura

Masaru Shiraishi

Hiroaki Yokota

Naotsugu Masuda

Hiroyuki Morioka

Hideshi Hiruta

Nobuyuki Nakamura

Ikuo Onimura

Takashi Haiki

Tadashi Kimura

Yoshihisa Shikenya

Shigeaki Imaishi

Takeshi Sugimoto

Osamu Yamashita

A differential control system for restrictively controlling a differential, which has electromagnetically controlled clutches disposed between differentially driven shafts, is electromagnetically controlled to lock and unlock the driven shafts. The control system has a controller for restrictively applying a locking current to the differential to lock and unlock the clutches in accordance with control modes manually selected.

Control system for restrictively controlling electromagnetically

A control system for a four-wheel drive vehicle includes a center differential provided between a front shaft and a rear shaft. The control system also includes a device for restricting a differential between the front shaft and the rear shaft by operating the center differential to be in a locking condition and a controller for controlling the differential restricting device so that a differential restricting force is increased based on an increase in an engine output. The differential restricting force is decreased based on an increase in a vehicle body speed.

Control system for vehicle with differential restricting device

A control system for a four-wheel drive vehicle includes a first differential provided between a front shaft and a rear shaft and a second differential provided between a right wheel and a left wheel. The control system comprises a first device provided in the first differential for restricting a differential between the front shaft and the rear shaft, a second device provided in the second differential for restricting a differential between the right wheel and the left wheel, and a device for controlling the restricting operations carried out by the first device and the second device. The controlling device includes a device for controlling operational timings in the first device and the second device so that the timing when the first device maintains the first differential in locking condition is different from the timing when the second device maintains the second differential in locking condition.

Control system for four-wheel drive vehicle

A control system for supercharging an internal combustion engine equipped with an automatic transmission includes superchargers which provide a variable capacity controlled by a supercharging capacity controller according to a supercharging capacity control pattern. The supercharging capacity is controlled so as increase at engine speeds higher when a demand to shift the automatic transmission to a lower speed gear is present than when a demand to shift the automatic transmission to a higher speed gear is present. Change of supercharging capacity is suspended for a predetermined period of time when a demand to shift the automatic transmission is present.

Control system for supercharged engine equipped with automatic

A control system for supercharging an internal combustion engine equipped with an automatic transmission includes a capacity changeable supercharger. The supercharger is controlled by a supercharging capacity controller, having data representative of at least one supercharging capacity control line, so that its supercharging capacity is charged according to operating conditions of the internal combustion engine. A transmission shift controller, causing the automatic transmission to shift according to operating conditions of the internal combustion engine, has data representative of at least one gear shift control line for a shift operation of the automatic transmission. The at least one gear shift control line has an intermediate portion, including an intersection with the supercharging capacity control line defined by a specific engine load between upper and lower middle vehicle speeds. The shift controller causes a shift of the automatic transmission prior to changing the supercharging capacity at engine operating conditions near an engine operating condition at the intersection.

Control system for supercharging engine equipped with automatic

Growing community of inventors

Hiroshima, Japan

Minoru Takata