Patent ID: 8052571
Filing Date: 2011-11-08
Classification: B60K,B60W,F16H,Y02T,Y10T

Abstract:
1. A control device for a hybrid vehicle including an engine actuated by combustion of fuel, a power split device coupling a plurality of rotating elements, coupled to a transmitting shaft of said engine, a transmitting shaft of a first motor-generator and a transmitting member, respectively, to one another in a relatively rotatable manner, and transmitting at least part of power from said engine to said transmitting member by transmission/reception of electrical power and mechanical power to/from said first motor-generator, a second motor-generator supplying mechanical power at a position between said transmitting member and a drive wheel, and a power control unit connected to an electric storage device, said first motor-generator and said second motor-generator to perform bi-directional electrical power control, said control device comprising: a rotational speed detecting unit detecting a rotational speed of said first motor-generator; a lockup state detecting unit detecting a lockup state of said first motor-generator on the basis of the rotational speed of said first motor-generator; and a lockup state avoidance controlling unit decreasing a torque produced by said engine upon detection of said lockup state.