Power control device
A technology of power control device and electric vehicle, which is applied in the direction of control device, power device control mechanism arrangement, battery/fuel cell control device, etc., can solve the problem of changing the speed of electric vehicle, small acceleration force of electric vehicle, and no significant acceleration of electric vehicle. feeling, etc.
Active Publication Date: 2014-01-01
AUTOMOTIVE RES & TESTING CENT
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Problems solved by technology
[0004] (1) When the electric vehicle starts, it is necessary to overcome the static frictional resistance suffered by the electric vehicle. If the electric vehicle does not have a retarding design, the existing power control device will cause the electric vehicle to delay the start, and the heavier the electric vehicle, the more serious the situation
[0005] (2) When the electric vehicle accelerates, the existing power control device will cause the electric vehicle to have no significant sense of acceleration, and the acceleration force of the electric vehicle is relatively small
[0006] (3) When the depth of the accelerator pedal is fixed, the change of the road gradient will cause the load of the electric vehicle to change accordingly, making the torque output signal of the existing power control device too large or too small, thereby changing the speed of the electric vehicle
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] refer to figure 2 and image 3 , the preferred embodiment 2 of the power control device of the present invention is used to control the power of an electric vehicle 3 . The electric vehicle 3 includes a battery 31 , a motor 32 , an accelerator pedal 33 and a sensing module 34 . The sensing module 34 senses the depth of the accelerator pedal 33, and generates a sensed depth of the accelerator pedal, and senses the speed of the electric vehicle 3, and generates a sensed vehicle speed, and senses the temperature of the motor 32, and generates a sensed value. Measuring the temperature of the motor, and sensing the voltage of the battery 31, and generating a sensing battery voltage, and sensing the temperature of the battery 31, and generating a sensing battery temperature, and sensing the remaining capacity of the battery 31, and generating a se...
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The invention discloses a power control device, which is used for controlling the power of an electric vehicle. The electric vehicle comprises a battery, a motor, an accelerator pedal and a sensing module, wherein the sensing module is used for sensing the depth of the accelerator pedal and the speed of the electric vehicle. The power control device comprises a situation judging module and a control module, wherein the situation judging module is used for carrying out at least one of acceleration situation judgment, starting situation judgment and load situation judgment according to a sensed accelerator pedal depth and a sensed vehicle speed which are generated by the sensing module; the control module is used for generating a torque output signal according to a judging result of the situation judging module and at least one of the sensed acceleration pedal depth and the sensed vehicle speed, wherein the torque output signal reflects an output torque which is used for controlling the motor.
Description
technical field [0001] The invention relates to a power control technology, in particular to a power control device for an electric vehicle. Background technique [0002] refer to figure 1 , an existing power control device for controlling the power of an electric vehicle has information of a fixed operation curve 1, and the operation curve 1 describes the relationship between the depth of an accelerator pedal of the electric vehicle and a torque output signal. The existing power control device obtains a torque output signal according to a sensed accelerator pedal depth and the information of the operation curve 1, and converts the torque output signal into an output torque to control a motor of the electric vehicle. [0003] Existing power control devices have the following disadvantages: [0004] (1) When the electric vehicle starts, it is necessary to overcome the static frictional resistance suffered by the electric vehicle. If the electric vehicle does not have a reta...
Claims
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IPC IPC(8): B60L15/28B60K26/00
CPCB60L15/2072B60L50/60B60L58/12B60L2240/12B60L2240/14B60L2240/423B60L2240/425B60L2240/545Y02T10/64Y02T10/70Y02T10/72
Inventor 陈建安卢廷星郑彦廷
Owner AUTOMOTIVE RES & TESTING CENT