Control circuit for speed of four-wheel drive
A speed control, four-wheel drive technology, applied in the direction of control drive, control device, electric vehicle, etc., can solve problems such as poor effect and poor reliability
Pending Publication Date: 2019-03-15
JIANGHAN UNIVERSITY
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Problems solved by technology
[0003] The invention provides a four-wheel drive vehicle speed control circuit, which solves the technical problems of poor reliability and poor effect of four-wheel drive vehicle speed control in the prior art
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Embodiment Construction
[0026] The embodiment of the present application provides a speed control circuit for a four-wheel drive vehicle to solve the technical problems of poor reliability and poor effect of the speed control of the four-wheel drive vehicle in the prior art.
[0027] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application. , rather than limiting the technical solutions of the present application, the embodiments of the present application and the technical features in the embodiments can be combined without conflict.
[0028] see figure 1 , a speed control circuit for a four-wheel drive vehicle, comprising: a gyroscope chip, a first operationa...
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The invention belongs to the technical field of the rotation speed of motors and discloses a control circuit for the speed of a four-wheel drive. The circuit comprises a gyroscope chip, a first operational amplifier U1A, a second operational amplifier U1B, an audion Q1, a first variable resistor R1, a fourth variable resistor R3, a fifth resistor R5 and an absolute value circuit; the power end ofthe gyroscope chip is connected with a power supply VCC and reverse-phase input ends of virtual ground output pins Out and U1A separately, and a Ref pin is connected with reference voltage V1; the output end of the U1A is connected with virtual ground through the R1, and the same-phase input end of the U1A is connected with a center tap of the R1; the same-phase input end of the U1B is connected with reference voltage V5, the output end of the U1B is connected with the output end of the U1A through a R4 and the absolute value circuit in sequence, and the reverse-phase input end of the U1B is connected with a center tap of the R4; a base electrode of the Q1 is connected with the output end of the U1B through the R5, a collector electrode of the Q1 is arranged to be used for being connectedwith a connector of a negative electrode of a motor, and an emission electrode of the Q1 is connected to the virtual ground. According to the control circuit for the speed, based on the gesture of thefour-wheel drive, the speed is efficiently and reliably adjusted.
Description
technical field [0001] The invention relates to the technical field of motor speed control, in particular to a speed control circuit for a four-wheel drive vehicle. Background technique [0002] The four-wheel drive vehicle is very fast, and it is easy to fly off the track at the top of the slope or in a curve. In order to prevent flying out, it is necessary to slow down on the slope or curve. At present, for ramp deceleration, most of the sponge or rubber is installed under the front shovel of the 4WD vehicle. When the 4WD vehicle approaches the slope, the front shovel will rub against the slope surface to achieve the effect of deceleration, but it needs to be adjusted according to the slope. ; For deceleration in curves, most of them are equipped with spring faucets to reduce the impact between four-wheel drive vehicles and curves. At the same time, the spring faucet absorbs the kinetic energy of the vehicle to achieve the purpose of deceleration. However, the conventiona...
Claims
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IPC IPC(8): B60L15/20B60L15/28
CPCB60L15/20B60L15/28B60L2260/28B60L2240/427B60L2240/421Y02T10/72
Inventor 卢俊辉刘建伟卢昕玥
Owner JIANGHAN UNIVERSITY