# US 7,610,129 B2 · Remote vehicle starter and method for remotely starting vehicle

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- Number: US 7,610,129 B2
- Document ID: US7610129B2
- Status: Granted
- Kind: B2
- Application number: 11/294,454
- Filed: 2005-12-06
- Published: 2006-11-30
- Granted: 2009-10-27
- Earliest claimed: 2004-12-06
- Assignees: Fujitsu Ten Limited
- Inventors: Akira Matsuura; Minoru Yoshimura
- Web page: https://patentgrep.com/patent/US7610129B2

## CPC

- F02N 11/0807: {Remote means}
- B60R 25/209: {Remote starting of engine}
- F02N 11/101: {for preventing engine starter actuation or engagement}
- F02N 2200/061: Battery state of charge [SOC]
- F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A remote vehicle starter allows a user to start an engine of a vehicle remotely. The starter includes a parameter-signal generating unit, a receiving unit, an engine starting unit and a controller. The parameter-signal generating unit generates a vehicle-parameter signal on a basis of a power source. The receiving unit receives an instruction for starting the engine. The engine starting unit starts the engine when receives the instruction for starting the engine from the receiving unit and receiving the vehicle-parameter signal satisfying a starting permission condition from the parameter-signal generating unit. The controller controls an engine starting by the engine starting unit, in accordance with a power source voltage value of the power source.

## Claims

### Claim 1

A remote vehicle starter for allowing a user to start an engine of a vehicle remotely, the starter comprising:
a monitor that monitors a power source voltage value of a power source of the vehicle;
a parameter-signal generating unit that generates a vehicle-parameter signal using the power source;
a receiving unit that receives an instruction for starting the engine from a transmitter;
an engine starting unit that starts the engine when receiving the instruction for starting the engine from the receiving unit; and
a controller that controls the engine starting unit, wherein:
the controller allows the engine starting unit to start the engine when the monitored power source voltage value is more than a threshold value and the vehicle-parameter signal satisfies a starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is more than the threshold value and the vehicle-parameter signal does not satisfy the starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is equal to or less than the threshold value and the vehicle-parameter signal satisfies the starting permission condition;
when the receiving unit receives the instruction for starting the engine, the monitor monitors the power source voltage value; and
when the controller detects that the monitored power source voltage value decreases to the threshold value, the controller transmits a detection result to the transmitter.

### Claim 2

A remote vehicle starter for allowing a user to start an engine of a vehicle remotely, the starter comprising:
a monitor that monitors a power source voltage value of a power source of the vehicle;
a parameter-signal generating unit that generates a vehicle-parameter signal using the power source;
a receiving unit that receives an instruction for starting the engine from a transmitter;
an engine starting unit that starts the engine when receiving the instruction for starting the engine from the receiving unit; and
a controller that controls the engine starting unit, wherein:
the controller allows the engine starting unit to start the engine when the monitored power source voltage value is more than a threshold value and the vehicle-parameter signal satisfies a starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is more than the threshold value and the vehicle-parameter signal does not satisfy the starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is equal to or less than the threshold value and the vehicle-parameter signal satisfies the starting permission condition;
the monitor always monitors the power source voltage value; and
when the controller detects that the monitored power source voltage value decreases to the threshold value, the controller transmits a detection result to the transmitter.

### Claim 3

A remote vehicle starter for allowing a user to start an engine of a vehicle remotely, the starter comprising:
a monitor that monitors a power source voltage value of a power source of the vehicle;
a parameter-signal generating unit that generates a vehicle-parameter signal using the power source;
the receiving unit receives the instruction for starting the engine from a transmitter;
an engine starting unit that starts the engine when receiving the instruction for starting the engine from the receiving unit; and
a controller that controls the engine starting unit, wherein:
the controller allows the engine starting unit to start the engine when the monitored power source voltage value is more than a threshold value and the vehicle-parameter signal satisfies a starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is more than the threshold value and the vehicle-parameter signal does not satisfy the starting permission condition;
the controller prohibits the engine starting unit to start the engine when the monitored power source voltage value is equal to or less than the threshold value and the vehicle-parameter signal satisfies the starting permission condition;
the monitor monitors the power source voltage value periodically; and
when the controller detects that the monitored power source voltage value decreases to the threshold value, the controller transmits a detection result to the transmitter.