Battery jump-starting method

Patent metadata

Field	Value
Publication number	US-10075004-B2
Application number	US-201615240063-A
Country	US
Kind code	B2
Filing date	Aug 18, 2016
Priority date	Nov 25, 2015
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

The battery jump-starting method includes determining whether a vehicle is available for jump-start, turning off a switch controlling a relay when the vehicle is available for jump-start, and temporarily driving the vehicle in a state in which the switch is maintained in an OFF state when the vehicle is started. The battery jump-starting method enables a vehicle to temporarily drive when starting in a situation in which it is not possible to replace or charge a battery, upon determining whether the vehicle is available for jump-start.

First claim

What is claimed is:

1. A battery jump-starting method, comprising:
determining whether a vehicle is available for jump-start;
turning off a switch which controls a relay when the vehicle is available for jump-start; and
temporarily driving the vehicle in a state in which the switch is maintained in an OFF state when the vehicle starts,
wherein the determining of whether the vehicle is available for jump-start includes:
determining whether a potential difference between a front stage and a rear stage of the relay is equal to or greater than a set potential difference; and
determining whether a potential at the rear stage of the relay is greater than 0 (zero).

2. The battery jump-starting method according to claim 1 , wherein a potential at the front stage of the relay is a sum of battery voltages.

3. The battery jump-starting method according to claim 1 , wherein a potential at the rear stage of the relay is a voltage supplied from a converter.

4. The battery jump-starting method according to claim 1 , wherein the switch is constantly in an ON state, and in the determining of whether the vehicle is available for jump-start, the switch is changed to an OFF state.

5. The battery jump-starting method according to claim 1 , wherein the temporarily driving of the vehicle includes:
when the vehicle jump-starts, turning on a power relay assembly according to an output relay control signal; and
when the power relay assembly is turned on, supplying power by a battery to a converter to turn on the converter.

6. The battery jump-starting method according to claim 1 , further comprising:
after the temporarily driving of the vehicle,
limiting a speed of the vehicle and providing a warning sound or a warning sentence indicating that the vehicle is temporarily driving to a driver.

7. The battery jump-starting method according to claim 1 , further comprising automatically charging a battery by turning on the relay when the vehicle starts.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Yang Hee Tae
• Kim Yu Seok
• Yoon Jong Hu
• Lee Ho Joong

Classifications

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• H02J7/342

  The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68) · CPC title

• F02N11/087

  Details of the switching means in starting circuits, e.g. relays or electronic switches · CPC title

• F02N11/14

  Starting of engines by means of electric starters with external current supply (F02N11/12 takes precedence) · CPC title

• B60S5/00

  Servicing, maintaining, repairing, or refitting of vehicles (vehicles adapted to carry a workshop for servicing or maintenance B60P3/14; servicing rail locomotives B61K) · CPC title