초록 ▼

A ignition-controlled parking brake interlock is provided for a vehicle. The parking brake operating lever is latched in brake-applied positions by engagement of a lever-mounted pawl with fixed sector. A solenoid is movable between positions blocking and unblocking movement of the vehicle ignition t

A ignition-controlled parking brake interlock is provided for a vehicle. The parking brake operating lever is latched in brake-applied positions by engagement of a lever-mounted pawl with fixed sector. A solenoid is movable between positions blocking and unblocking movement of the vehicle ignition to OFF. A lock bar carried by the lever is movable by a second solenoid between positions blocking and unblocking movement of the pawl to release the lever. In one embodiment, a brake lever position switch and a switch operated by the second solenoid control solenoid operation to prevent ignition key removal unless the parking brake is applied and to prevent parking brake release unless the key is inserted and the ignition moved to RUN. In another embodiment, bi-stable solenoids are controlled by a controller that is provided with high and low current inputs from branch circuits that include control switches operated by ignition position and parking brake lever position.

대표청구항 ▼

A parking brake lock for a vehicle having a parking brake operator which includes a lever movable between a brake-released position and a range of brake-applied positions, said lock comprising a latch member, biasing means biasing the latch member into engagement with the lever in any brake-applied

A parking brake lock for a vehicle having a parking brake operator which includes a lever movable between a brake-released position and a range of brake-applied positions, said lock comprising a latch member, biasing means biasing the latch member into engagement with the lever in any brake-applied position to latch the lever in said position, release means connected to the latch member for disengaging the latch member from the lever and permit movement of the lever to brake-released position, release disabling means operable to provide a barrier which prevents the release means from disengaging the latch member from the lever, said release disabling means including a lock bar movable into and out of a position blocking movement of the latch member out of engagement with the lever, and control means for operating the release disabling means.