Patent ID: 8831830

Claim:
A vehicle controlling system comprising: an engine as a power source of a vehicle; an electric storage device; a generator that generates power by rotating in conjunction with a rotation of the engine; a starting device that starts the engine by consuming power from the electric storage device; and a power steering device that can receive power supplied from the electric storage device and the generator, respectively, and operates by consuming the supplied power, wherein during an execution of inertial running in which the engine is stopped to allow a vehicle to run with inertia, the vehicle controlling system starts the engine by the starting device based on a vehicle speed, and changes a predetermined vehicle speed, power consumed by the power steering device is changed in response to a vehicle speed, and the predetermined vehicle speed, when a power supply capability of the electric storage device is low, is a vehicle speed higher than the predetermined vehicle speed when the power supply capability of the electric storage device is high, and the predetermined vehicle speed is: (i) a lower limit vehicle speed in a vehicle speed range in which the electric storage device can output power consumed by the starting device when the engine is started and power consumed by the power steering device at the same time, or (ii) a vehicle speed close to the lower limit vehicle speed in the vehicle speed range.