PARKING LOCK SYSTEM
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle transmission parking lock system comprising a parking lock for locking or releasing the transmission, an operating device of the vehicle which is electrically connected to the parking lock, a spring for engaging the parking lock, a pressure-controlled release device for disengaging the parking lock, a holding device for securing the parking lock in a released and/or engaged condition, and an emergency release device of the parking lock. When the vehicle drive assembly is static due to the occurrence of a defined event, the emergency release device actuates a device to release the parking lock under pressure control. The holding device retains the parking lock in the released condition for as long as the emergency release device is activated, and the defined event which triggers actuation of the pressure-controlled release device of the parking lock occurs when at least two operating devices are actuated in a defined manner.
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Citations
21 Claims
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1-10. -10. (canceled)
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11. A parking lock system for a transmission of a motor vehicle, the parking lock system comprising:
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a parking lock for either blocking or releasing the transmission by respectively engaging or disengaging a locking pawl in a parking lock gearwheel connected to a drive output of the transmission, an active electrical connection between an operating device in an inside space of the motor vehicle and the parking lock, a spring for engaging the parking lock, a pressure-controlled release device for disengaging the parking lock, a holding device for securing the parking lock in at least one of a released and an engaged condition, an emergency release device of the parking lock such that, when a drive assembly of the motor vehicle is static due to an occurrence of a defined event, the emergency release device actuates a device to release the parking lock under pressure control, and the parking lock being securable in the released condition by the holding device and the parking lock remaining secured in the released condition for as long as the emergency release device is activated, the defined event, which triggers the actuation of the device for the pressure-controlled release of the parking lock, occurs when at least two operating devices either are or have been actuated either at a same time or in a defined timed sequence. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A parking lock system for a transmission of a motor vehicle, the parking lock system comprising:
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a locking pawl being releasably engagable with a parking lock gearwheel which is connected to a drive output of the transmission, the locking pawl being actuated to either engage and lock a parking lock or disengage and unlock the parking lock, via the parking lock gearwheel; a first operating device located in an interior of the motor vehicle and being connected to the parking lock by an active electrical connection; a spring engaging the parking lock; a pressure-controlled release device for disengaging the parking lock; a holding device for contacting and securing the parking lock in at least one of an engaged condition and a disengaged condition; an emergency release device of the parking lock communicating with and actuating the pressure-controlled release device, when a drive assembly of the motor vehicle is static as a result of a defined event, for releasing the parking lock; and the holding device for securing the parking lock in the disengaged condition until the emergency release device is activated, and the defined event being one of simultaneous actuation of the first operating device and a second operating device or actuation of the first operating device and the second operating device in a defined, timed sequence.
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Specification