Motor vehicles – With means for detecting wheel slip during vehicle...
Patent
1986-11-05
1988-08-23
Mitchell, David M.
Motor vehicles
With means for detecting wheel slip during vehicle...
180244, 180249, 303111, B60T 826
Patent
active
047654295
ABSTRACT:
A four wheel drive vehicle with an antilock braking system in which front and rear axles are coupled together by a power transmission assembly capable of directly coupling or uncoupling the axles, a hydraulic braking system controls the hydraulic pressure applied to each brake disposed in the wheel of the respective axles and an antilock control device is disposed in the hydraulic braking system for controlling hydraulic braking pressure such that it may be reduced when the axle is just about to become locked. In such a four wheel drive vehicle, the antilock control device includes a front wheel control section arranged to control the hydraulic pressure applied to the front wheel brakes and a rear wheel control section arranged to control the hydraulic pressure applied to the rear wheel brakes. The rear wheel control section maintains the hydraulic braking pressure at a lower level when the power transmission assembly maintains a direct-coupled state as compared to when it maintains a non-direct-coupled state.
REFERENCES:
patent: 4605087 (1986-08-01), Ashauer et al.
Honda Giken Kogyo Kabushiki Kaisha
Mitchell David M.
Watts Charles R.
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