Patent application number | Description | Published |
20120200241 | Control Device for Vehicle Electric Drive Motor and Vehicle With the Same - A controller for vector-controlled motor of vehicle judges whether a battery needs to be warmed up in accordance with an output of a battery temperature sensor, and when the battery needs to be warmed up, in situation (i) where the vehicle is stopped, sets a q-axis current value of the motor at zero, or when a brake is released from the situation (i), sets a q-axis current at a value corresponding to a drive torque for a vehicle creep operation, and sets a d-axis current at a value for battery warm-up. When the battery needs to be warmed up in situation (ii) where the vehicle is running, the controller sets a q-axis current at a value corresponding to a drive torque of vehicle running and sets a d-axis current at a value for the battery warm-up in relation to the q-axis current value. | 08-09-2012 |
20120239255 | Lane Departure Prevention Device and Vehicle Provided with Same - A lane departure prevention device includes departure prevention control means that performs control to prevent deviation from a lane based on a result of detection means such as sensors and a camera, driver's intention determination means that determines driver's steering intention and actuator activation limiting means that limits activation of an actuator based on the driver's steering intention from the driver's intention determination means. The driver's intention determination means calculates a variation ΔTh in the steering torque detected and a variation ΔTs in the control command value to a steering actuator, and determines that, when |ΔTh|−|ΔTs| is a threshold or more, driver's operational intention is present and limits the activation of the departure prevention control. This can avoid the interruption of departure prevention control in response to activation of an actuator for lane departure avoidance that a driver does not intend because of erroneous detection that a driver intends as such. | 09-20-2012 |
20130103240 | Battery Temperature Control Device - A battery temperature control device for an electric vehicle is provided which is capable of maintaining both the range of the electric vehicle and the battery life at a high level without drastically reducing either of them. A recommended temperature range suitable for battery use and a usable temperature range in which a battery is usable and which is wider than the recommended temperature range are included, and while the battery temperature is basically controlled to converge to the recommended temperature range to maintain the battery life, in a situation where the power consumption necessary for controlling the battery temperature to converge to the recommended temperature is increased, making it difficult to travel a desired travelling distance, the recommended temperature range is switched to the usable temperature range and the battery temperature is controlled to converge to the usable temperature range, and the power consumption necessary for controlling the battery temperature is suppressed and the range of the vehicle is maintained. | 04-25-2013 |
20130173105 | Controller for Vehicle and Vehicle Including the Controller - Provided are a controller for vehicle controlling a temperature state of a storage device, especially enabling effective temperature rise of a storage device from a low-temperature state, and a vehicle including such a controller. The controller for vehicle includes: a driving motor, first storage device that exchanges electrical energy with the driving motor; temperature detection means that detects a temperature of the first storage device; second storage device that exchanges electrical energy with the first storage device; and an electric power converter that controls exchange of electrical energy between the first storage device and the second storage device. When the temperature detection means detects a temperature lower than or equal to a predetermined value and the driving motor performs a regenerating operation, the electric power converter supplies electrical energy of the second storage device to the first storage device. | 07-04-2013 |