Back to results
US 9,174,629 B2Granted
Vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakayuki Asami, Masashi Yoshimi
Life of this patent
Estimating the term…
Abstract
A vehicle includes a driving source, a shutter device, and a controller. The driving source is configured to generate a driving force. The shutter device is configured to adjust an amount of air for cooling the driving source. The controller is configured to control the driving source and is configured to restrict an operation of the driving source based on a temperature of the driving source when a failure of the shutter device is detected.
Claims12
A vehicle comprising:
- an energy storage device
- a driving source configured to generate a driving force, the driving source includes a rotary electric machine and a power converter that drives the rotary electric machine with an electric power from the energy storage device;
- a shutter device configured to adjust an amount of air for cooling the driving source;
- and
- a controller configured to control the driving source, the controller being configured to restrict an operation of the rotary electric machine based on a temperature of at least one of the rotary electric machine and the power converter when a failure of the shutter device is detected.
2 more elements
A vehicle comprising:
- an internal combustion engine;
- a cooler configured to cool the internal combustion engine with a cooling medium;
- a shutter device configured to adjust an amount of air for cooling the internal combustion engine;
- a cooling fan configured to blow air passed through the shutter device to cool the cooling medium;
- a pump configured to deliver the cooling medium to the internal combustion engine;
- and
- a controller configured to select a first travel mode when a failure of the shutter device is detected and a temperature of the cooling medium is lower than a first reference temperature, the controller configured to select a second travel mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds the first reference temperature, the controller configured to control the cooler such that in the first travel mode, at least one of an amount of air of the cooling fan and a discharge amount of the pump is increased more than the normal travel mode, the controller configured to select a second travel mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds a second reference temperature that is higher than the first reference temperature, the controller configured to restrict at least one of a rotation speed and an output torque of the internal combustion engine in the second travel mode as compared with the normal travel mode, the controller configured to select a third drive mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds a third reference temperature that is higher than the second reference temperature, the controller configured to stop the internal combustion engine in the third drive mode.
4 more elements
A vehicle comprising:
- an energy storage device;
- a rotary electric machine;
- a drive device including a power converter that drives the rotary electric machine using electric power from the energy storage device, the power converter including a chopper circuit having upper and lower arms of a switching element and a converter that steps up an output voltage of the energy storage device;
- a cooler configured to cool the drive device with a cooling medium;
- a shutter device configured to adjust an amount of air for cooling the drive device;
- a cooling fan configured to cool the cooling medium by blowing air passed through the shutter device;
- a pump configured to deliver the cooling medium to the drive device;
- a controller configured to select a normal travel mode when a failure of the shutter device is detected and a temperature of the cooling medium is lower than a first reference temperature, the controller configured to select a first travel mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds the first reference temperature, the controller configured to control the cooler such that in the first travel mode, at least one of an amount of air of the cooling fan and a discharge amount of the pump is increased compared with the normal travel mode, the controller configured to select a second travel mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds a second reference temperature that is higher than the first reference temperature, the controller configured to hold the upper arms of the switching element in a conduction state in the second travel mode, the controller configured to select a third drive mode when the failure of the shutter device is detected and the temperature of the cooling medium exceeds a third reference temperature that is higher than the second reference temperature, the controller configured to control the power converter such that a load rate of the rotary electric machine is restricted by comparing with the normal travel mode in the third drive mode.
5 more elements
Dependencies are inferred from the claim text.