US 9,810,168 B2
Control apparatus for vehicle and control method for engine
Hirokazu Kato, Nisshin (JP); and Jumpei Kakehi, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Appl. No. 15/37,355
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
PCT Filed Nov. 20, 2014, PCT No. PCT/IB2014/002504
§ 371(c)(1), (2) Date May 18, 2016,
PCT Pub. No. WO2015/075534, PCT Pub. Date May 28, 2015.
Claims priority of application No. 2013-243074 (JP), filed on Nov. 25, 2013.
Prior Publication US 2016/0273468 A1, Sep. 22, 2016
Int. Cl. F02D 41/06 (2006.01); B60T 7/12 (2006.01); B60W 30/16 (2012.01); B60W 30/17 (2012.01); B60W 30/18 (2012.01); B60T 7/22 (2006.01); F02D 41/04 (2006.01)
CPC F02D 41/062 (2013.01) [B60T 7/12 (2013.01); B60T 7/22 (2013.01); B60W 30/16 (2013.01); B60W 30/17 (2013.01); B60W 30/18018 (2013.01); B60W 30/18118 (2013.01); F02D 41/042 (2013.01); B60T 2201/022 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A control apparatus for a vehicle, comprising:
a distance sensor configured to detect a preceding vehicle;
an inter-vehicle distance control unit configured to, if set to be active, perform an inter-vehicle distance control in which a vehicle travels by following the preceding vehicle with an inter-vehicle distance corresponding to a vehicle speed while the preceding vehicle is detected by the distance sensor, and travels at a preset constant vehicle speed while the preceding vehicle is not detected by the distance sensor;
an engine stop-start unit configured to stop the engine when an engine stop condition is satisfied and starts the engine when an engine start condition is satisfied;
a vehicle stop state maintenance unit configured to provide a braking force for maintaining the vehicle in the vehicle stop state, wherein the engine stop-start unit stops the engine, by activation of the vehicle stop state maintenance unit in the case where the vehicle is stopped by the inter-vehicle distance control unit or the vehicle is stopped by operation of a brake pedal, and
after the vehicle is stopped by the operation of the brake pedal, if the inter-vehicle distance control unit is set to be active in the vehicle stop state, an engine operation control unit is configured to maintain an operation state of the engine before the inter-vehicle distance control unit is set to be active to continue to maintain the vehicle stop state.