Title:
TORQUE DISTRIBUTION DEVICE OF FOUR-WHEEL DRIVE VEHICLE
Document Type and Number:
Japanese Patent JP3551038
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a torque distribution device of a four-wheel drive vehicle capable of reliably detecting generation of a tight corner braking phenomenon.
SOLUTION: A turning radius is determined from a wheel speed of inner/outer rings of rear wheels (S14) to judge whether or not a determined turning radius is not more than a turning radius capable of generating a tight corner braking phenomenon (S16). Here, when it is not more than the radius (S16 is Yes), a turning radius is determined from a wheel speed of front/rear wheels (S18) to judge whether or not a difference between a turning radius determined from the inner/outer rings of the rear wheels and a turning radius obtained by the front/rear wheels is large (S20), and when judged that this difference is small (S20 is Yes), transmission torque of a hydraulic clutch is controlled (S24) as the tight corner braking phenomenon is generated.
Inventors:
Tsuyoshi Murakami
Shigeta Ryohei
Shigeta Ryohei
Application Number:
JP27062098A
Publication Date:
August 04, 2004
Filing Date:
September 07, 1998
Export Citation:
Assignee:
Toyota Koki Co., Ltd.
International Classes:
B60K17/348; (IPC1-7): B60K17/348
Domestic Patent References:
| JP7257216A | ||||
| JP59109431A | ||||
| JP8002278A | ||||
| JP62187623A | ||||
| JP7257216A | ||||
| JP5037849B2 | ||||
| JP63203421A | ||||
| JP1145229A | ||||
| JP63221253A |
Attorney, Agent or Firm:
Akito Tashita
Isosuke Kato
Isosuke Kato