Configurable electronic brake shift interlock override
First Claim
1. A method for electronically controlling a shifter lockout function of a vehicle while parked, wherein the vehicle includes a brake pedal and a transmission having a park position and a plurality of out-of-park positions, and an ignition switch for receiving an ignition key, the method comprising the steps of:
- detecting the beginning of a parked state of the vehicle with the transmission in the park position;
inhibiting selection of an out-of-park position;
establishing a driver action window in response to detection of the parked state and the ignition key removed from the ignition switch;
detecting whether the brake pedal is activated during the driver action window;
if an activation of the brake pedal is detected during the driver action window, then enabling selection of an out-of-park position while activation of the brake pedal continues; and
if an end of the driver action window is detected, then continuing inhibiting shifter movement from the park position during the remainder of the parked state.
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Accused Products
Abstract
Method and apparatus for an electronic override of the brake shift interlock in a motor vehicle can provide for the vehicle to be manually pushed while it is parked without keys. A timed window is initiated upon detection of a parked state of the vehicle with its transmission in a park position and ignition key removable or removed. Selection of an out-of-park position is inhibited. The invention monitors activation of the brake pedal during the timed window. Override of the brake shift interlock is enabled while the brake pedal is activated during the timed window, thereby allowing selection of an out-of-park shifter position. The timed window ends after a predetermined time or event (e.g., after the driver'"'"'s door is opened) to inhibit any further shifter movement from the park position until the next ignition key-cycle.
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Citations
19 Claims
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1. A method for electronically controlling a shifter lockout function of a vehicle while parked, wherein the vehicle includes a brake pedal and a transmission having a park position and a plurality of out-of-park positions, and an ignition switch for receiving an ignition key, the method comprising the steps of:
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detecting the beginning of a parked state of the vehicle with the transmission in the park position; inhibiting selection of an out-of-park position; establishing a driver action window in response to detection of the parked state and the ignition key removed from the ignition switch; detecting whether the brake pedal is activated during the driver action window; if an activation of the brake pedal is detected during the driver action window, then enabling selection of an out-of-park position while activation of the brake pedal continues; and if an end of the driver action window is detected, then continuing inhibiting shifter movement from the park position during the remainder of the parked state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A motor vehicle, comprising:
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a brake pedal; a brake activation sensor; a transmission range selector; an ignition switch; and a controller for initiating a timed window in response to a key being, removed from the ignition switch with the transmission range selector in a park position, and during the timed window enabling the shift selector to move from the park shifter position in response to the sensor indicating activation of the brake pedal. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of brake shift interlock override, comprising:
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initiating a timed window upon detection of a parked state of a vehicle with its transmission in a park position with a removed ignition key; inhibiting selection of an out-of-park position; detecting whether the brake pedal is activated; enabling selection of an out-of-park position while the brake pedal is activated during the timed window; and ending the timed window after a predetermined time.
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Specification