ECONOMY RUNNING SYSTEM FOR ELECTRIC VEHICLE AND CONTROL METHOD FOR THE SAME
First Claim
1. An economy running system for an electric vehicle, which is provided with at least one of motor for driving the vehicle, the economy running system comprising:
- a central control unit;
a motor control unit configured to receive a signal from the central control unit and control the motor;
an economy mode switch configured to selectively change a driving mode of the electric vehicle between a normal mode and an economy mode;
an accelerator position sensor configured to detect operation of an accelerator and transmit an accelerator position signal to the central control unit;
a brake position sensor configured to detect operation of a brake and transmit a brake position signal to the central control unit; and
a driving load determination unit configured to detect driving load information of the electric vehicle and transmit the driving load information to the central control unit.
1 Assignment
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Accused Products
Abstract
An economy running system for an electric vehicle and a control method therefor. The economy running system includes a central control unit, a motor control unit for receiving a signal from the central control unit and controlling the motor, an economy mode switch which selectively changes the driving mode of the electric vehicle between a normal mode and an economy mode, an accelerator position sensor which detects operation of an accelerator and transmits an accelerator position signal to the central control unit, a brake position sensor which detects operation of a brake and transmits a brake position signal to the central control unit, and a driving load determination unit which detects driving load information of the electric vehicle and transmits the information to the central control unit.
30 Citations
15 Claims
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1. An economy running system for an electric vehicle, which is provided with at least one of motor for driving the vehicle, the economy running system comprising:
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a central control unit; a motor control unit configured to receive a signal from the central control unit and control the motor; an economy mode switch configured to selectively change a driving mode of the electric vehicle between a normal mode and an economy mode; an accelerator position sensor configured to detect operation of an accelerator and transmit an accelerator position signal to the central control unit; a brake position sensor configured to detect operation of a brake and transmit a brake position signal to the central control unit; and a driving load determination unit configured to detect driving load information of the electric vehicle and transmit the driving load information to the central control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control method for an economy running system for an electric vehicle including a motor for driving the electric vehicle, a central control unit, a motor control unit, an economy mode switch, an accelerator position sensor, a brake position sensor and a driving load determination unit, the control method comprising:
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detecting an accelerator position signal, a brake position signal and driving load information using the accelerator position sensor, the brake position sensor and the driving load determination unit when the electric vehicle is driving in economy mode, and transmitting the signals to the central control unit; determining if the vehicle is in an acceleration driving state, a creep driving state or a coasting driving state; determining a target torque of the motor according to the accelerator position signal, brake position signal and driving load information; and controlling the torque of the motor according to the determined target torque. - View Dependent Claims (12, 13, 14)
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15. A computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
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program instructions that detect and transmit an accelerator position signal, a brake position signal and driving load information of a vehicle to the controller; program instructions that determine if the vehicle is in an acceleration driving state, a creep driving state or a coasting driving state; program instructions that determine a target torque of a motor based on the accelerator position signal, the brake position signal and the driving load information; and program instructions that control the torque of the motor according to the determined target torque.
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Specification