Stepping motor controller

A stepper motor and controller technology, applied in the direction of motor generator control, control system, electrical components, etc., can solve problems such as poor reliability, achieve the effect of realizing compression ratio, simple control method, and simplifying power supply lines

CN106357177AInactive Publication Date: 2017-01-25JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-01-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a stepping motor controller (20) which comprises a voltage stabilizer (23), a voltage stabilizer (24), a fixed-frequency pulse generator (25), an AND gate (26), a voltage comparator (27) and a voltage comparator (28), wherein the voltage stabilizer (23) and the voltage stabilizer (24) are used for modulating an input voltage signal ux (19) and supplying power to a controller, a driver and a stepping motor; the fixed-frequency pulse generator (25) is used for generating a fixed-frequency square-wave pulse signal CP0; the AND gate (26) accesses the CP0 and the input voltage signal ux (19) and is used for outputting a pulse signal CP; the voltage comparator (27) and the voltage comparator (28) are used for identifying the voltage magnitude of the input voltage signal ux (19); an output end is connected with the driver (21); when a high-voltage direct current voltage signal UH is inputted, the stepping motor rotates forward and the lift range of a piston is increased, and therefore the compression ratio of an engine can be increased; when a low-voltage direct current voltage signal UL is inputted, the stepping motor rotates reversely and the lift range of the piston is reduced, and therefore the compression ratio of the engine can be reduced; when a 0V voltage signal is inputted, the stepping motor does not work and the compression ratio of the engine is unchanged.
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Description

technical field

[0001] The invention relates to a stepping motor controller, in particular to a stepping motor controller used for variable lift compression ratio pistons. Background technique

[0002] The variable compression ratio engine is to change the compression ratio of the engine in real time through control means, so that the engine adopts a high compression ratio to improve the thermal efficiency and fuel economy of the engine under low and medium load conditions; The high compression ratio prevents knocking. One of the ways is to change the compression ratio of the engine by adjusting the lift of the piston. The variable lift compression ratio piston changes the lift through the stepping motor. When the stepping motor rotates forward, the piston lift increases and the engine compression ratio increases. When the stepping motor reverses, the piston lift decreases and the engine The compression ratio decreases, and when the stepper motor is not working, the engine...

Examples

Embodiment Construction

[0027] The present invention is described in detail below in conjunction with accompanying drawing:

[0028] refer to figure 1 , the crankshaft, connecting rod and piston mechanism involved in the stepper motor controller of the present invention include a crankshaft 1, an annular graphite groove 2, a crankshaft graphite layout circuit 3, a brush 4, a brush 5, a connecting rod 6, a connecting rod Graphite layout circuit 7, electric brush 8, graphite layout circuit inside the piston 9, motor seat 10, piston internal wire 11, stepper motor (motor stator 12, motor rotor 14), piston 13, plug body lower part 15, guide plate 16, Inner sleeve 17, plug body top 18.

[0029] refer to figure 1 , the power supply line of the stepper motor controller of the present invention is completed by digging a graphite line on the crankshaft, connecting rod and piston, and the graphite line is insulated from the crankshaft, connecting rod and piston.

[0030] refer to figure 1 , figure 2 , ...