Power change-over device for four-wheel drive car

Abstract

Abstract PURPOSE:To prevent brake distribution to front and rear wheels from changes in a four-wheel drive car provided with a dog clutch in a drive system interconnecting approximately rigidly the front and rear wheels by turning off the dog clutch when a brake is turned on and an accelerator is turned off. CONSTITUTION:The output shaft 2 of an engine 1 is connected through bevel gears 3, 4 to a first propeller shaft 5 which is connected to a second propeller shaft 6 therebehind through a viscous coupling 8 as a center differential gear. Also, the second propeller shaft 6 is connected to a third propeller shaft 7 therebehind through a dog clutch 9. In such a 4WD car, a computer 21 for receiving the output signals from a brake detecting means 22 and acceleration detecting means 23 is provided. When the brake is turned on and the accelerator is turned off, the dog clutch 9 is controlled to be turned off to prevent changes in the brake distribution to front and rear wheels 13, 16 in the corresponding running.

Inventors

• 👤 Tetsuo Hamada
• 👤 Katsuhiko Masuda
• 👤 Kazunori Shibuya
• 👤 Kazuhiko Shimada
• 👤 Shoji Tokushima

Bibliographic Details