Drive system for armored electric vehicles

Patent metadata

Field	Value
Publication number	US-12502946-B2
Application number	US-202318169084-A
Country	US
Kind code	B2
Filing date	Feb 14, 2023
Priority date	Feb 15, 2022
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

Embodiments of the invention relate to a drive system for armored electric vehicles and a method for its operation in event of a fire of the traction battery.

First claim

The invention claimed is:

1 . An armored motor vehicle with electric drive, comprising:
a high-voltage battery for the energy supply of the electric drive, being removably connected by explosive connection elements to the motor vehicle, and a combustion engine which is adapted to start and assure propulsion of the motor vehicle upon separation of the high-voltage battery from the motor vehicle.

2 . The armored motor vehicle according to claim 1 , in which the electric drive is an electrical independent wheel drive.

3 . The armored motor vehicle according to claim 1 , in which the combustion engine is connected by a differential transmission in permanent and parallel manner to a drive train of the motor vehicle.

4 . The armored motor vehicle according to claim 1 , in which the combustion engine generates electrical energy for the operation of the electric drive.

5 . The armored motor vehicle according to claim 1 , in which it is not recognizable from the outside that the motor vehicle has a combustion engine.

6 . The armored motor vehicle according to claim 5 , in which the exhaust gas system of the combustion engine is not visible from the outside.

7 . The armored motor vehicle according to claim 1 , in which the high-voltage battery is connected by explosive screws or explosive bolts to the motor vehicle.

8 . A method for operating an armored motor vehicle with electric drive including a high-voltage battery for the energy supply of the electric drive, being removably connected by explosive connection elements to the motor vehicle, and a combustion engine which is adapted to start and assure propulsion of the motor vehicle upon separation of the high-voltage battery from the motor vehicle, the method comprising:
upon overheating or fire of the high-voltage battery, the connection between the motor vehicle and the high-voltage battery is exploded and the high-voltage battery is entirely separated from the motor vehicle and the combustion engine is started and assures further operation of the drive of the motor vehicle.

9 . The method according to claim 8 , in which the combustion engine generates a torque which is coupled across a differential transmission into a drive train of the motor vehicle.

10 . The method according to claim 8 , in which the combustion engine generates electrical energy to supply the electric drive of the motor vehicle.

Assignees

• Audi Ag

Inventors

• Herold Philipp

Classifications

• F42B3/006 Primary

  Explosive bolts; Explosive actuators (explosive valves F16K13/06; explosive cutting B23D15/145; explosive switches H01H39/00; pyrotechnical actuators F15B15/19) · CPC title

• B60Y2300/26

  Dangerous conditions · CPC title

• B60Y2400/112

  Batteries · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• F41H7/00

  Armoured or armed vehicles (general vehicle aspects B60; armoured or armed ships B63G; armoured or armed aircraft B64D; mounting guns, e.g. machine guns, on vehicles F41A23/00) · CPC title