Anti-slip control device for drive wheels of automotive vehicle

Patent 4850656 Issued on July 25, 1989. Estimated Expiration Date:

March 8, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3912034

All-wheel drive automotive vehicle traction control system
Patent #: 4589511
Issued on: 05/20/1986
Inventor: Leiber

Wheel slip controlling system
Patent #: 4685547
Issued on: 08/11/1987
Inventor: Ohashi , et al.

Method and brake system for traction control
Patent #: 4702336
Issued on: 10/27/1987
Inventor: Seibert , et al.

Slip-controlled brake system
Patent #: 4745995
Issued on: 05/24/1988
Inventor: Wupper

Slip-controlled brake system for motor vehicles with four-wheel drive Patent #: 4753312
Issued on: 06/28/1988
Inventor: Burgdorf , et al.

Inventors

Assignee

Toyota Jidosha Kabushiki Kaisha

Application

No. 07/165479 filed on 03/08/1988

US Classes:

303/192, Vehicle inclination180/197, WITH MEANS FOR DETECTING WHEEL SLIP DURING VEHICLE ACCELERATION AND CONTROLLING IT BY REDUCING APPLICATION OF POWER TO WHEEL303/24.1, INERTIA CONTROL477/184Brake

Examiners

Primary: Kashnikow, Andres
Assistant: Graham, Matthew C.

Attorney, Agent or Firm

Oliff & Berridge

International Classes

B60T 8/17 (20060101)
B60T 8/175 (20060101)

Foreign Application Priority Data

1987-03-10 JP

Abstract

An anti-slip control device for a drive wheel of a vehicle, for preventing an excessive amount of slip of the drive wheel during acceleration of the vehicle, by lowering a speed of the drive wheel when the amount of slip of the drive wheel exceeds a predetermined value. The control device includes a target-speed determining device for determining a target speed of the drive wheel based on a detected speed of the vehicle and the detected speed of the drive wheel. The control device further includes an uphill-road determining device for determining whether the vehicle is on an uphill road, and a low-speed detecting device for detecting that a detected running speed of the vehicle is lower than a predetermined threshold value. If the vehicle is on an uphill road and the vehicle speed is lower than the threshold value, the target speed determining device is operated in an uphill-road mode such that the determined target speed is lower than that determined in a flat-road mode.