| CPC B60W 20/17 (2016.01) [B60W 10/08 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/083 (2013.01); B60W 2710/083 (2013.01)] | 9 Claims |
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1. A control method for controlling a series hybrid vehicle having a drive motor and an internal combustion engine supported in a vehicle body via a plurality of mount members in an integrated state, the method using a controller and comprising:
driving an electric power generation motor by motive power of the internal combustion engine to generate electric power by the electric power generation motor;
controlling the internal combustion engine such that an engine rotational speed of the internal combustion engine is equal or smaller than an upper limit rotational speed;
using the electric power generated to drive the drive motor to drive a drive wheel;
generating a regenerative torque by the drive motor in response to a deceleration request during deceleration; and
restricting the regenerative torque such that the regenerative torque does not exceed a regenerative torque upper limit value when the drive motor generates the regenerative torque in response to the deceleration request while the electric power generation motor is driven by the internal combustion engine,
the regenerative torque upper limit value being calculated such that the regenerative torque is restricted to a magnitude at which a floor vibration generation region is lower than the upper limit rotational speed of the internal combustion engine, the floor vibration generation region being a region of engine rotational speeds at which resonance occurs in a floor of the vehicle body, the floor vibration generation region varying according to the regenerative torque.
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