Truck and method of controlling electric drive motor for driving mounted on truck
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMitsuhiro Nada
Life of this patent
Estimating the term…
Abstract
When a stepping amount of an accelerator pedal is 0%, torque Ta is generated with the rotating speed being zero. When retreat is occurred in the slope start, the rotating speed is reduced. When the rotating speed is reduced, the torque is increased. Thus, the retreating force finally matches the propulsion force. As a result, the retreat becomes uniform motion. The decision of torque in such a manner does not require a value of a vehicle weight.
Claims12
A truck, comprising:
- an electric drive motor for driving;
- and
- a control unit configured to control the electric drive motor, when a retreat occurs in a slope start on a slope, to generate torque in accordance with a rotating speed of the electric drive motor and without the control unit taking into account a value of gradient of the slope, the generated torque being in an opposite direction from torque acting on the electric drive motor due to the gradient of the slope, and the generated torque having an absolute value same as an absolute value of the torque acting due to the gradient of the slope.
A truck, comprising:
- an electric drive motor for driving;
- and
- a control unit configured to control the electric drive motor, when a retreat occurs in a slope start on a slope, to generate propulsion in accordance with a rotating speed of the electric drive motor and without the control unit taking into account a value of gradient of the slope, so that propulsion force generated by the electric drive motor matches retreating force generated due to the gradient of the slope.
A truck, comprising:
- an electric drive motor for driving;
- and
- a control unit configured to control the electric drive motor, when a retreat occurs in a slope start on a slope, to operate the electric drive motor without the control unit taking into account a value of gradient of the slope, so that the retreat becomes uniform motion.
A method of controlling an electric drive motor for driving mounted on a truck, comprising:
- detecting occurrence of a retreat in a slope start on a slope;
- and
- controlling the electric drive motor to generate torque in accordance with a rotating speed of the electric drive motor and without taking into account a value of gradient of the slope, the generated torque being in an opposite direction from torque acting on the electric drive motor due to the gradient of the slope, the torque having an absolute value same as an absolute value of the torque acting due to the gradient of the slope.
A method of controlling an electric drive motor for driving mounted on a truck, comprising:
- detecting occurrence of a retreat in a slope start on a slope;
- and
- controlling the electric drive motor to generate propulsion in accordance with a rotating speed of the electric drive motor and without taking into account a value of gradient of the slope, so that propulsion force generated by the electric drive motor matches retreating force generated due to the gradient of the slope.
A method of controlling an electric drive motor for driving mounted on a truck, comprising:
- detecting occurrence of a retreat in a slope start on a slope;
- and
- controlling the electric drive motor to operate the electric drive motor without taking into account a value of gradient of the slope, so that the retreat becomes uniform motion.
Dependencies are inferred from the claim text.