Electronic control unit for automatically activating a parking brake and method for preventing the automatic activation of the parking brake in motor vehicles
First Claim
1. A system, comprising:
- a motor vehicle startable without a mechanical key;
an automatically activated parking brake system for said motor vehicle startable without the mechanical key including;
(a) an electronic control unit for automatically activating a parking brake in dependence on at least one specified operating parameter of the motor vehicle; and
(b) means for arbitrarily preventing the electronic control unit from automatically activating the parking brake when said activation would otherwise occur based on the at least one specified operating parameter, said means being operatively coupled with the electronic control unit;
wherein the motor vehicle includes an electronic authorization verification device with a wireless code transmission, said means for arbitrarily preventing the automatic activation of the parking brake making use of the electronic authorization verification device such that the automatic activation of the parking brake is arbitrarily prevented by inserting the authorization verification device in a holding shaft.
1 Assignment
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Accused Products
Abstract
An electronic unit for automatically activating a parking brake in dependence of at least one specified operating parameter or operating mode of a motor vehicle, which can be started without a mechanical key, is equipped with a device for arbitrarily preventing the automatic activation of the parking brake. In a first alternative, the unit is connected with a key button, which can be directly manually actuated, in the form of an OFF switch for the arbitrary prevention of the automatic activation of the parking brake. In a second alternative, the electronic unit in a motor vehicle, which can be started through an electronic authorization verification device with wireless code transmission, is equipped with a mechanism with which the arbitrary prevention of the automatic activation of the parking brake can be triggered by inserting the authorization verification device in a holding shaft that is provided for this purpose.
12 Citations
5 Claims
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1. A system, comprising:
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a motor vehicle startable without a mechanical key; an automatically activated parking brake system for said motor vehicle startable without the mechanical key including; (a) an electronic control unit for automatically activating a parking brake in dependence on at least one specified operating parameter of the motor vehicle; and (b) means for arbitrarily preventing the electronic control unit from automatically activating the parking brake when said activation would otherwise occur based on the at least one specified operating parameter, said means being operatively coupled with the electronic control unit; wherein the motor vehicle includes an electronic authorization verification device with a wireless code transmission, said means for arbitrarily preventing the automatic activation of the parking brake making use of the electronic authorization verification device such that the automatic activation of the parking brake is arbitrarily prevented by inserting the authorization verification device in a holding shaft. - View Dependent Claims (2)
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3. A system, comprising:
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a motor vehicle startable without a mechanical key; an automatically activated parking brake system for said motor vehicle startable without the mechanical key, including; (a) an electronic control unit for automatically activating a parking brake in dependence on at least one specified operating parameter of the motor vehicle; and (b) means for arbitrarily preventing the electronic control unit from automatically activating the parking brake when said activation would otherwise occur based on the at least one specified operating parameter, said means being operatively coupled with the electronic control unit; wherein said means for arbitrarily preventing the automatic activation of the parking brake comprises a key button in the form of an OFF switch coupled with said electronic control unit, said key button being directly manually actuatable via the driver to arbitrarily prevent the automatic activation of the parking brake by the electronic control unit; and wherein the motor vehicle includes an electronic authorization verification device with a wireless code transmission, said means for arbitrarily preventing the automatic activation of the parking brake making use of the electronic authorization verification device such that the automatic activation of the parking brake is arbitrarily prevented by inserting the authorization verification device in a holding shaft. - View Dependent Claims (4)
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5. A method of operating an automatically activated parking brake system, the method comprising the acts of:
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detecting at least one specified operating parameter of a motor vehicle startable without a mechanical key; automatically activating a parking brake of the motor vehicle in dependence on the detected at least one specified operating parameter; and triggering an arbitrary prevention of the automatic activation of the parking brake when said activation would otherwise occur based on the at least one specified operating parameter upon a signal from a user of the motor vehicle; wherein said triggering act occurs by a direct manual actuation of a key button switch signaling the arbitrary prevention of the automatic activation of the parking brake; and wherein the act of triggering is carried out by inserting an authorization verification device having a wireless code transmission in a holding shaft in the vehicle, said insertion signaling the arbitrary prevention of the automatic activation of the parking brake.
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Specification