Control system for electric vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshito Sekiguchi, Atsushi Tabata, Koichi Okuda
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Abstract
A control system for an electric vehicle for allowing a driver to virtually enjoy a manual shifting operation as performed in the conventional vehicles having transmissions without reducing stability and operability of the electric vehicle. A controller is configured to set a required drive torque in accordance with a selected operating range, and to selectively allow an execution of a skip shifting of the operating range to the range further than two ranges from the current operating range, based on the required drive torque to be set in the operating range selected by operating a shifting device consecutively.
Claims11
A control system for an electric vehicle that controls a motor serving as a prime mover based on a target torque value set in accordance with a required drive force,
- wherein the target torque value is set in accordance with an operating range of the electric vehicle selected from a plurality of ranges in which torque characteristics differ in accordance with a change in a speed of the motor,
- the control system comprising:
- a shifter that is manipulated by a driver to select the operating range from the plurality of ranges;
- and
- a controller that controls an output torque of the motor based on the target torque value set in accordance with the operating range selected by operating the shifter,
- wherein the controller is configured to:
- selectively allow an execution of a skip shifting of the operating range to the range further than two ranges from the current operating range, based on the target torque value to be set in the operating range selected by operating the shifter consecutively,
- allow an execution of the skip shifting in a case that the target torque value to be set in the operating range selected by operating the shifter consecutively is equal to or less than a threshold torque value, and
- reject an execution of the skip shifting in a case that the target torque value to be set in the operating range selected by operating the shifter consecutively is greater than the threshold torque value.
A control system for an electric vehicle that controls a motor serving as a prime mover based on a target torque value set in accordance with a required drive force,
- wherein the target torque value is set in accordance with an operating range of the electric vehicle selected from a plurality of ranges in which torque characteristics differ in accordance with a change in a speed of the motor,
- the control system comprising:
- a shifter that is manipulated by a driver to select the operating range from the plurality of ranges;
- and
- a controller that controls an output torque of the motor based on the target torque value set in accordance with the operating range selected by operating the shifter,
- wherein the controller is configured to:
- selectively allow an execution of a skip shifting of the operating range to the range further than two ranges from the current operating range, based on the target torque value to be set in the operating range selected by operating the shifter consecutively,
- allow an execution of the skip shifting in a case that an increase rate of the target torque value to be set in the operating range selected by operating the shifter consecutively with respect to the current target torque value is equal to or less than a threshold rate, and
- reject an execution of the skip shifting in a case that the increase rate is greater than the threshold rate.
Dependencies are inferred from the claim text.