Trailer braking system

Details Trailer braking system Trailer braking system

1996-11-01

1999-03-02

Poon, Peter M.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

303 15, 303976, 188171, B60T 1300

Patent

active

058761004

ABSTRACT:
A trailer or towed vehicle braking system incorporates a master hydraulic cylinder, the piston of which is biased to apply pressure to the slave cylinders in the braking system and wherein an electric high torque mechanism, when operated at high electric power, overcomes the biasing force to apply no pressure to the slave cylinders. When the electric power to the high torque system is reduced, the pressure applied by the master cylinder is increased. The amount of electric power applied to the high torque motor is preferably controlled based on the braking pressure being applied in the towing vehicle.

REFERENCES:
patent: 3561573 (1971-02-01), Allen, Jr.
patent: 3768870 (1973-10-01), Howard
patent: 5129712 (1992-07-01), Feldmann et al.
patent: 5626402 (1997-05-01), Saffran

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