IP Library Granted Patent US 7,576,636
Granted Patent B2
US 7,576,636 · App. 10/528,148 · Granted Aug 18, 2009

Driver authorization system

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Quick Facts
Patent No.
US 7,576,636
App. No.
10/528,148
Granted
Aug 18, 2009
Kind
B2
Abstract

A driver authorization system for a vehicle includes an on-board identification device for communicating with a mobile release device to verify usage authorization, an ignition lock, ignition key, and a control unit for activating ignition lock functions (such as starting and switching off the engine) when the ignition key is brought into a corresponding position in the ignition lock. The ignition lock functions can be activated by means of the control unit using a pushbutton ( 6 ), that can be mounted in, actuated while mounted, and removed from the ignition lock.

Claims (24)

1. A driver authorization system for a vehicle, comprising:

an on-board identification device for communicating with a mobile release device to verify a usage authorization;

a rotary ignition lock for an ignition key; and

a control unit for activating ignition lock functions when the ignition key is brought into a corresponding position in the rotary ignition lock; wherein,

the ignition lock functions are activatable by the control unit in response to a signal from a pushbutton unit;

the pushbutton unit is mountable in, actuated while mounted, and removed from, the rotary ignition lock as an alternative to the ignition key; and

means are provided which allow the ignition lock functions to be activated without rotating the rotary ignition lock.

2. The driver authorization system as claimed in claim 1 , wherein the rotary ignition lock comprises a rotary switch.

3. The driver authorization system as claimed in claim 1 , wherein the pushbutton unit, when operated, generates a signal which starts a communication authorizing usage.

4. The driver authorization system as claimed in claim 1 , wherein:

when the pushbutton unit is operated, the ignition lock functions are activated by the control unit on the basis of additional vehicle information; and

the additional vehicle information comprises position of at least one of a brake pedal, a clutch pedal and a vehicle door.

5. A pushbutton with an actuating element for activating ignition lock functions of a vehicle, including starting and switching off the vehicle engine, wherein:

the pushbutton is adapted to be mounted in, actuated while mounted, and removed from, a rotary ignition lock of a vehicle;

the pushbutton is adapted to be supplied with power via an inductive voltage coupling to the rotary ignition lock;

when the pushbutton is operated, the actuating element interacts with a release switch in the rotary ignition lock, to activate ignition lock functions without rotating the rotary ignition lock; and

the actuating element includes a release plunger which, when operated, is releasable in parallel with an axis of symmetry of the pushbutton in order to operate the release switch in the rotary ignition lock.

6. A pushbutton with an actuating element for activating ignition lock functions of a vehicle, including starting and switching off the vehicle engine, wherein:

the pushbutton is adapted to be mounted in, actuated while mounted, and removed from, a rotary ignition lock of a vehicle;

when the pushbutton is operated, the actuating element interacts with a release switch in the rotary ignition lock, to activate ignition lock functions without rotating the rotary ignition lock;

the actuating element includes a release plunger which, when operated, is releasable in parallel with an axis of symmetry of the pushbutton in order to operate the release switch in the rotary ignition lock; and

an end position of the release plunger is limited by locking sliders arranged laterally to the axis of the release plunger.

7. The pushbutton as claimed in claim 1 , further comprising a locating illumination unit which is contactlessly supplied with power.

8. The pushbutton as claimed in claim 7 , wherein the pushbutton is supplied with power via an inductive voltage coupling to the rotary ignition lock.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NO. 10/567,810 PREVIOUSLY RECORDED ON REEL 020976 FRAME 0889. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Jul 1, 2020
From: DAIMLERCHRYSLER AG
To: DAIMLER AG
Reel/Frame 053583/0493 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 23, 2012
From: DAIMLER AG
To: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Reel/Frame 028090/0731 →
CHANGE OF NAME Recorded May 14, 2008
From: DAIMLERCHRYSLER AG
To: DAIMLER AG
Reel/Frame 020976/0889 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2006
From: WIELTSCH, PETER
To: DAIMLERCHRYSLER AG
Reel/Frame 018682/0213 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2005
From: DORNBACH, HANNELORE; FITZ, HARTMUT; GEBER, MICHAEL; OHLE, JOERN-MARTEN
To: DAIMLERCHRYSLER AG
Reel/Frame 017086/0444 →