Control system for vehicle, vehicle, and control method for vehicle

Patent metadata

Field	Value
Publication number	US-9925885-B2
Application number	US-201314423247-A
Country	US
Kind code	B2
Filing date	Nov 14, 2013
Priority date	Nov 16, 2012
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A control system for a vehicle including an engine, an electrical storage unit and a generator driven by the engine, the control system includes a socket and a controller. The socket is configured to supply electric power from the generator or the electrical storage unit to a device outside the vehicle in a travel stop state. The controller stops the engine when a preset condition is satisfied. The controller sets a first range and a second range in which the condition is satisfied. The first range is the range in a case where electric power is supplied to the device outside the vehicle and the second range is the range in another case. The first range is narrower than the second range.

First claim

The invention claimed is:

1. A control system for a vehicle that includes an engine, an electrical storage unit and a generator driven by the engine, the control system comprising:
a socket configured to supply electric power from the generator or the electrical storage unit to a device outside the vehicle in a travel stop state, and
an electronic control unit configured to stop the engine when a preset condition is satisfied,
the electronic control unit being configured such that when electric power is supplied to the device outside the vehicle, the preset condition is satisfied when a coolant temperature is in a first range,
the electronic control unit being configured such that when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is in a second range, and
the electronic control unit being configured to set the first range and the second range wherein the first range is narrower than the second range,
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is higher than or equal to a first threshold, and
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is not satisfied when the coolant temperature is lower than the first threshold.

2. The control system according to claim 1 , wherein
when electric power is supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is higher than or equal to a second threshold that is set so as to be higher than the first threshold, and
wherein when electric power is supplied to the device outside the vehicle, the preset condition is not satisfied when the coolant temperature is lower than the second threshold.

3. The control system according to claim 2 , wherein
the electronic control unit is configured to prohibit operation of an exhaust gas recirculation device when the coolant temperature is lower than a third threshold.

4. The control system according to claim 3 , wherein
the third threshold is higher than the first threshold and lower than the second threshold.

5. The control system according to claim 1 , wherein
the electronic control unit is configured to prohibit operation of an exhaust gas recirculation device when the coolant temperature is lower than a third threshold.

6. A vehicle comprising:
an engine;
an electrical storage unit;
a generator configured to be driven by the engine;
a socket configured to supply electric power from the generator or the electrical storage unit to a device outside the vehicle in a travel stop state; and
an electronic control unit configured to stop the engine when a preset condition is satisfied,
the electronic control unit being configured such that when electric power is supplied to the device outside the vehicle, the preset condition is satisfied when a coolant temperature is in a first range,
the electronic control unit being configured such that when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is in a second range, and
the electronic control unit being configured to set the first range and the second range wherein the first range is narrower than the second range,
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is higher than or equal to a first threshold, and
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is not satisfied when the coolant temperature is lower than the first threshold.

7. A control method for a vehicle, the vehicle including an engine, a generator, an electrical storage unit, a socket and an electronic control unit,
the control method comprising:
supplying, by the socket, electric power from the generator or the electrical storage unit to a device outside the vehicle when the vehicle is in a travel stop state;
stopping, by the electronic control unit, the engine when a preset condition is satisfied; and
setting, by the electronic control unit, a first range and a second range,
wherein when electric power is supplied to the device outside the vehicle, the preset condition is satisfied when a coolant temperature is in the first range,
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is in the second range, the first range being narrower than the second range,
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is satisfied when the coolant temperature is higher than or equal to a first threshold, and
wherein when electric power is not supplied to the device outside the vehicle, the preset condition is not satisfied when the coolant temperature is lower than the first threshold.

Assignees

• Teraya Ryuta
• Toyota Motor Co Ltd

Inventors

• Teraya Ryuta

Classifications

• B60W10/06

  including control of combustion engines · CPC title

• B60W2710/0688

  Engine temperature · CPC title

• B60W2555/20

  Ambient conditions, e.g. wind or rain · CPC title

• F02N11/0829

  related to special engine control, e.g. giving priority to engine warming-up or learning · CPC title

• B60L50/51

  characterised by AC-motors · CPC title