Title:
TORQUE SPLIT TYPE FOUR-WHEEL-DRIVE CAR
Document Type and Number:
Japanese Patent JPH01111530
Kind Code:
A
Abstract:
PURPOSE:To eliminate early the slip condition of wheels by distributing much torque to wheels having no slip when a difference in the rotational difference between front and rear wheels takes place and throttling to reduce the output of an engine when a plurality of wheels slip. CONSTITUTION:The output of a transmission 2 is distributed to front and rear wheels by a center differential gear 3, while a portion of torque for the front wheels is distributed to the rear wheels through a hydraulic multiple disk clutch 6. A torque split controller 100 is provided which receives the output signals of various sensors for detecting the running conditions. This controller 100 generates a clutch controlling signal for controlling the torque distribution on the basis of a difference in each average rotational frequency between the front and rear wheels. Thus, the clutch 6 is controlled to distribute torque to the front and rear wheels having no slip while a throttle opening controlling signal is generated to throttle the opening of a throttle and reduce the output of an engine when slips on at least three wheels are detected.
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Inventors:
SUZUKI NOBORU
NAGAI MASAAKI
NAGAI MASAAKI
Application Number:
JP26908587A
Publication Date:
April 28, 1989
Filing Date:
October 24, 1987
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
B60T8/1769; B60K17/346; B60K17/35; B60T8/172; B60T8/175; B60T8/1763; B60T8/58; B60W10/02; B60W10/04; B60W10/06; B60W10/12; F02D29/02; (IPC1-7): B60K17/35; B60T8/58
Domestic Patent References:
| JPS6288618A | 1987-04-23 | |||
| JPS61285130A | 1986-12-15 |
Attorney, Agent or Firm:
Nobuhiro Kobashi (1 outside)
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