Engine starting device

Patent metadata

Field	Value
Publication number	US-9488148-B2
Application number	US-201314375443-A
Country	US
Kind code	B2
Filing date	Mar 11, 2013
Priority date	Mar 15, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

An engine starting device is basically provided with a resistor, a bypass circuit and a switch. The resistor is configured to be disposed in series between a starter motor and a battery. The bypass circuit is disposed in parallel with respect to the resistor. The switch is configured to selectively open and close the bypass circuit, the switch opening the bypass circuit in response to commencement of engine startup, and closing the bypass circuit in response to the battery voltage approaches a maximum value during engine startup.

First claim

The invention claimed is:

1. An engine starting device comprising:
a resistor configured to be disposed in series between a starter motor and a battery;
a bypass circuit disposed in parallel with respect to the resistor; and
a switch configured to selectively open and close the bypass circuit, the switch opening the bypass circuit in response to commencement of engine startup, and closing the bypass circuit in response to the battery voltage approaches a maximum value during engine startup.

2. The engine starting device according to claim 1 , wherein
the switch is a bypass relay.

3. The engine starting device according to claim 1 , wherein
the switch has a normally open contact and is actuated by electrical current to close the normally open contact.

4. The engine starting device according to claim 1 , further comprising
a controller programmed to output a command to actuate the switch.

5. The engine starting device according to claim 4 , further comprising
a driving relay electrically connected to the switch, and the driving relay being controlled by the command from the controller to selectively fed electrical current to the switch.

6. The engine starting device according to claim 5 , wherein
the switch has a normally open contact that is closed by electrical current.

7. The engine starting device according to claim 6 , wherein
the driving relay has a normally open contact that is closed by the command from the controller.

Assignees

• Nissan Motor
• Nissan Motor

Inventors

• Hosaka Yuuichi
• Hattori Motoyuki
• Furushou Masaya
• Ootsuka Toshihiko
• Shimizu Hiromoto
• Sano Ryo

Classifications

• F02N19/001

  Arrangements thereof · CPC title

• F02N11/08 Primary

  Circuits specially adapted for starting of engines · CPC title

• F02N2250/02

  Battery voltage drop at start, e.g. drops causing ECU reset · CPC title

• Y10T74/131

  Automatic · CPC title

• F02N11/087 Primary

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