High-voltage vehicle network of a motor vehicle, quick-break switch and method of operating the high-voltage vehicle network

Patent metadata

Field	Value
Publication number	US-10137783-B2
Application number	US-201615230627-A
Country	US
Kind code	B2
Filing date	Aug 8, 2016
Priority date	Feb 8, 2014
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A high-voltage motor vehicle electric system contains a high-voltage battery and a consumer network which are interconnected by an electric cable, and a quick-break switch for disconnecting the high-voltage battery from the consumer network. The quick-break switch receives an airbag signal. The airbag signal is used for actuating the quick-break switch to sever the electric cable supplying power to the consumer network.

First claim

The invention claimed is:

1. A high-voltage vehicle network of a motor vehicle, the high-voltage network comprising:
a high-voltage battery;
a consumer network;
an electrical cable connecting said high-voltage battery to said consumer network;
a quick-break switch for disconnecting said high-voltage battery from said consumer network, said quick-break switch receiving an airbag signal, said quick-break switch containing a relay drive, an auxiliary drive having an activation cable and receiving the airbag signal, a magnetic drive with a control cable connected to said relay drive, and a relay with two relay contacts, said relay being open when not electrically powered; and
said magnetic drive having a movable impact armature, said auxiliary drive acting on said movable impact armature.

2. A high-voltage vehicle network of a motor vehicle, the high-voltage network comprising:
a high-voltage battery;
a consumer network;
an electrical cable connecting said high-voltage battery to said consumer network;
a quick-break switch for disconnecting said high-voltage battery from said consumer network, said quick-break switch receiving an airbag signal, said quick-break switch containing a relay drive, an auxiliary drive having an activation cable and receiving the airbag signal, a magnetic drive with a control cable connected to said relay drive, and a relay with two relay contacts, said relay being open when not electrically powered;
said auxiliary drive containing a separating element for cutting through said control cable, said separating element having a punch with a guide and a hole formed therein perpendicular to said guide of said punch, and said control cable passes through said hole.

3. A high-voltage vehicle network of a motor vehicle, the high-voltage network comprising:
a high-voltage battery;
a consumer network;
an electrical cable connecting said high-voltage battery to said consumer network;
a quick-break switch for disconnecting said high-voltage battery from said consumer network, said quick-break switch receiving an airbag signal;
said electrical cable having over current protection and a short-circuit bridge connected in parallel with said consumer network, said over current protection is disposed on a battery side of said short-circuit bridge, and said short-circuit bridge containing said quick-break switch.

4. The high-voltage vehicle network according to claim 3 , wherein said quick-break switch contains a semiconductor switch or a relay, which is closed when not electrically powered.

5. A high-voltage vehicle network of a motor vehicle, the high-voltage network comprising:
a high-voltage battery;
a consumer network;
an electrical cable connecting said high-voltage battery to said consumer network;
a quick-break switch for disconnecting said high-voltage battery from said consumer network, said quick-break switch receiving an airbag signal and having a relay and a semiconductor switch connected in series; and
said electrical cable containing said quick-break switch having said relay and said semiconductor switch connected in series.

6. The high-voltage vehicle network according to claim 3 , wherein said over current protection is a fusible link.

7. A quick-break switch, comprising:
an auxiliary drive;
a relay drive;
a relay having a magnetic drive with a control cable connected to said relay drive; and
said auxiliary drive having an activation cable and a separating element for severing said control cable.

8. The quick-break switch according to claim 7 , wherein said auxiliary drive is a pyrotechnic drive.

Assignees

• Ellenberger & Poensgen

Inventors

• Birner Markus
• Engewald Manuel
• Gottschalk Klaus
• Gross Patric
• Meckler Peter
• Miklis Markus
• Pimenta Ricardo
• Schneider Ewald

Classifications

• H01H50/20

  movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil · CPC title

• Y02T10/7005

  Cross-Sectional Technologies · mapped topic

• B60R2021/01252

  Devices other than bags · CPC title

• B60L3/04 Primary

  Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H) · CPC title

• B60K28/14

  responsive to accident or emergency, e.g. deceleration, tilt of vehicle · CPC title