Method for the remote control of a function of a motor vehicle using an electronic unit outside the vehicle, and a motor vehicle

Patent metadata

Field	Value
Publication number	US-10429832-B2
Application number	US-201515320258-A
Country	US
Kind code	B2
Filing date	Apr 20, 2015
Priority date	Jun 18, 2014
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

The invention relates to a method for the remote control of a function of a motor vehicle by means of a vehicle-external electronic unit, in which the vehicle-external electronic unit ( 7 ) is checked during the driving event of the motor vehicle ( 1 ) in that the vehicle-external electronic unit ( 7 ) triggers an operation, the result of which is checked for correctness by a control device ( 3 ) of the motor vehicle ( 1 ). In the method, in which the computing power of the control device as well as the bandwidth of the communication between the vehicle-external electronic unit and the control device are reduced, an index list is stored in the control device ( 3 ), wherein, for triggering an operation, an index is transmitted from the control device ( 3 ) to the vehicle-external electronic unit ( 7 ) and the vehicle-external electronic unit ( 7 ) determines by means of the index input variables which are stored in dependence on the index in the vehicle-external electronic unit ( 7 ), by means of which the operation is carried out.

First claim

The invention claimed is:

1. A method for the remote control of a function of a motor vehicle by a vehicle-external electronic unit, in which the vehicle-external electronic unit is checked during the driving event of the motor vehicle in that the vehicle-external electronic unit triggers a mathematical operation, the result of which is checked for correctness by a control device of the motor vehicle,
storing, in the control device, a look-up table comprising an index list;
for triggering the mathematical operation in the vehicle-external electronic unit, transmitting an index by the control device to the vehicle-external electronic unit; and
determining, by the vehicle-external electronic unit using the index as an input variable to the look-up table, which operation is carried out by the motor vehicle, wherein the index list is stored in dependence on the index in the look-up table, by means of which the mathematical operation is carried out.

2. The method according to claim 1 , characterized in that in the vehicle-external electronic unit, for each index, in addition to the input variables, an expected result of the mathematical operation is stored which is transmitted to the control device together with the calculated result.

3. The method according to claim 1 , characterized in that the control device selects from the index list an index to be transmitted to the vehicle-external electronic unit by means of a random number generator.

4. The method according to claim 1 , characterized in that a check of the result which is calculated by the vehicle-external electronic unit is performed in the motor vehicle and control of the motor vehicle by means of the electronic unit is only enabled in the case of a correct calculation.

5. The method according to claim 1 , wherein during the calculation of the result, different components of the electronic unit are required and utilized.

6. The method according to claim 1 , wherein the index list is updated.

7. The method according to claim 1 , wherein the control device transmits a plurality of indexes to check the vehicle-external electronic unit during an entire driving operation of the motor vehicle.

8. A motor vehicle comprising:
a control device which communicates with a vehicle-external electronic unit and monitors a mathematical operation of the vehicle-external electronic unit during a driving operation,
wherein the control device is external to the vehicle-external electronic unit,
wherein the mathematical operation is triggered by the control device in the vehicle-external electronic unit, and a result of the mathematical operation is transmitted by the vehicle-external electronic unit to the control device,
wherein, in the control device, an index list in the form of a look-up table is stored, wherein, for triggering the mathematical operation in the vehicle-external electronic unit, an index is transmitted from the control device to the vehicle-external electronic unit, as a result of which the vehicle-external electronic unit determines, using the index as an input variable to the look-up table, which operation is carried out by the motor vehicle, wherein the index list is stored in dependence on the index in the vehicle-external electronic unit and by which the mathematical operation can be carried out.

Assignees

• Valeo Schalter & Sensoren Gmbh

Inventors

• Beck Manuel
• Gehin Frederic
• Scheerle Marc
• Pressel Ullrich
• Anderschitz Martin
• Friesen Viktor
• Hiller Andreas

Classifications

• G07C2009/00507

  keyless data carrier having more than one function · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title

• G05D1/0011 Primary

  associated with a remote control arrangement · CPC title

• G07C9/00309 Primary

  operated with bidirectional data transmission between data carrier and locks · CPC title