Motor vehicles – With means for promoting safety of vehicle – its occupant or...
Patent
1979-09-14
1981-10-20
Mitchell, David M.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
123179K, 123198D, 192 009, B60K 2800
Patent
active
042955408
ABSTRACT:
Brake wear in a vehicle (11, 11a) may be reduced by an interlock (23, 23a) which blocks delivery of power to the wheels (13, 13a) or the like if an attempt is made to initiate powered travel while the parking brake (19, 19a) remains engaged. Rather than neutralizing the vehicle transmission (16, 16a), the interlock (23, 23a) responds to an engaged parking brake (19, 19a) accompanied by drive transmitting conditions in the clutch (18, 18a) and transmission (16, 16a) by suppressing power output at the engine (12, 12a). In one form the system overrides the operator's controls to limit fuel input to the engine (12) so that stalling occurs if start-up is attempted with the brake (19) engaged while in another form the system directly shuts down the engine (12a) under such conditions. Start-up of the vehicle (11, 11a) on a slope or under load is facilitated as the engine (12, 12a) may be accelerated while the transmission (16, 16a) is in gear and the brake (19, 19a) is still engaged. Use of the parking brake (19, 19a) for emergency stopping is facilitated as the retarding action of the engine (12, 12a) remains available to supplement such use of the parking brake (19, 19a).
REFERENCES:
patent: 3608285 (1971-09-01), Berk
patent: 3626919 (1971-12-01), MacMillan
patent: 3722492 (1973-03-01), Shibata
patent: 4033311 (1977-07-01), Burson
patent: 4051915 (1977-10-01), Behrens
patent: 4136329 (1979-01-01), Trobert
Mitchell David M.
Towmotor Corporation
LandOfFree
Vehicle brake and engine interlock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle brake and engine interlock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle brake and engine interlock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1486163