Reaction mechanism for booster

Details Reaction mechanism for booster Reaction mechanism for booster

1997-06-19

1998-09-08

Lopez, F. Daniel

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, 91434, 60552, F15B 910

Patent

active

058029524

ABSTRACT:
According to the invention, the booster is not provided with a brake reaction transmission mechanism, and hence a reaction cannot be transmitted to a brake pedal. On the other hand, a pseudo-reaction imparting means is provided to impart a pseudo-reaction of suitable magnitude which depends on the degree of depression of the brake pedal. The pseudo-reaction imparting means is arranged so that when the brake pedal is depressed relatively rapidly, a relatively smaller braking reaction is imparted than during a usual depression. With this arrangement, the transmission of an abnormally high braking reaction to a driver which is experienced in a conventional booster during a quick braking operation due to an operational rag of the booster is avoided. The pseudo-reaction imparting means allows a reaction of a suitable magnitude which depends on the rate of depression of the brake pedal by a driver to be imparted, thus permitting a high output to be obtained with a reduced force of depression during a quick braking operation.

REFERENCES:
patent: 2796154 (1957-06-01), Stelzer
patent: 3152518 (1964-10-01), Ayers
patent: 3373662 (1968-03-01), Voll et al.
patent: 3411414 (1968-11-01), Brown et al.
patent: 3534662 (1970-10-01), Eggstein
patent: 5337650 (1994-08-01), Uyama

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