Vehicle electrical system architecture

• US 9,827,930 B2
• Filed: 04/24/2015
• Issued: 11/28/2017
• Est. Priority Date: 10/25/2012
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Schoeberl, Eduard, Kaltenbrunner, Martin
• Primary Examiner(s): Skibinski, Thomas
• Application Number:
  US14/695,571
• Publication Number:
  US 20150224948A1
• Time in Patent Office: 949 Days
• Field of Search: 307 106, 307 107, 307 101, 307 91, 320103-105, 320166
• CPC Class Codes: B60R 16/033 characterised by the use of electrical cells or batteries for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36
• CPC Class Codes: F02N 11/0862 characterised by the electrical power supply means, e.g. battery
• CPC Class Codes: H02J 7/1438 in combination with power supplies for loads other than batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

The invention relates to a vehicle comprising an internal combustion engine and a vehicle electrical system, which comprises a battery, a current distributor, a starter, a generator, and electrical loads, in such a way that the vehicle comprises a first supply line, the first supply line connects the current distributor to a starter terminal or to the starter, the vehicle comprises a second supply line, the second supply line connects the current distributor to a support point, and the electrical loads and the generator are electrically connected to the support point.

Claims

1. A vehicle comprising an internal combustion engine and comprising a vehicle electrical system which comprises a battery, a current distributor, a starter, a generator and electrical loads, wherein the vehicle comprises:

a first supply line connecting the current distributor to a starter terminal or to a starter;

a second supply line connecting the current distributor to a support point, and wherein the electrical loads and the generator are electrically connected to the support point;

a switch located between the support point and the starter terminal;

a control unit for controlling the switch, wherein the switch is configured as a break contact; and

a control device, wherein

a status signal for requesting a start can be transmitted at least unidirectionally to the control device via a data connection, and

upon a start request, the control device transmits a control signal for opening the switch to the control unit.

2. The vehicle according to claim 1,

wherein

the control unit is configured to open the switch prior to a start of the engine, and

the control unit is configured to close the switch after a start of the engine.

3. The vehicle according to claim 2, wherein

the data connection between the at least one control device and the control unit is configured as a LIN bus, and

the control unit is configured to be provided with a processor and a driver.

4. The vehicle according to claim 1, wherein the support point is configured to be utilized as jump start support point.

5. The vehicle according to claim 1, wherein the control unit is comprised by the current distributor.