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Control device for inhibiting flat nullspeed electric brake used in regenerated feedback type electrical braking electric car

An electric braking and zero-speed technology, applied in the electronic field, can solve problems affecting safety, vehicle parking, etc., and achieve the effect of optimizing control functions and saving energy loss

Inactive Publication Date: 2006-02-22
上海瑞华新能源汽车有限公司
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AI Technical Summary

Problems solved by technology

[0003] The technical problem in the prior art to be solved by the present invention is: because in the prior art, the AC variable frequency drive tram with regenerative feedback electric braking, in the zero-speed static state on flat ground, when electric braking is added, sudden The problem of stopping the vehicle after reverse flow due to the addition of reverse braking torque affects safety

Method used

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  • Control device for inhibiting flat nullspeed electric brake used in regenerated feedback type electrical braking electric car

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Embodiment Construction

[0014] Such as figure 1 As shown, the present invention is a zero-speed electric brake controller for prohibiting flat ground for regenerative feedback electric brake electric cars. The set flip-flop 5, the first control gate 2 and the second control gate 4 are composed, the input signal of the extreme value detector 1 is the electric braking master command and the judgment extreme value obtained by external collection, and the extreme value Detector 1 judges the implementation state of the electric braking master order online, and the input signal of the zero-speed detector 6 is the measured speed of the electric car and the zero-speed reference value collected externally, and the zero-speed detector 6 judges the vehicle speed online In the zero-speed state, the output terminal of the extreme value detector 1 is connected to the input terminals of the first control gate 2 and the second control gate 4, and the output terminal of the first control gate 2 is connected to the fi...

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Abstract

Disclosed is a flat zero-velocity forbidden electric brake controller for regenerative feedback-type electric-braking electric car, which comprises an extremum controller, a zero velocity detector, a set trigger and a control gate, on the base of setting extremum and zero velocity datum value, it real-time collecting the actual speed value of the electric car and the electric braking master control signal, and by total-digit datum discrimination structure, real-time discriminating the history process relation between flat zero velocity and the electric braking master control and controlling the realization of electric brake in flat zero velocity state. The invented is a special functional device for the variable-frequency driven electric car with regenerative feedback-type electric brake, avoiding the car backflow phenomenon at flat zero-velocity and optimizing the control function of the electric-car control system.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a sensing system, in particular to a vehicle state judging device, in particular to a zero-speed electric brake controller for a regenerative feedback type electric brake electric vehicle that prohibits flat ground. Background technique [0002] In the prior art, urban trackless or trams are driven by DC chopper driving, which cannot realize regenerative feedback electric braking, and there is no technology for real-time online judgment of the historical process relationship between zero speed on flat ground and the main order of electric braking. However, for AC variable-frequency drive trams with regenerative feedback electric braking, when electric braking is applied in a zero-speed static state on flat ground, there will be a problem of sudden reverse braking torque, which will cause the vehicle to reverse and then stop, which will affect safety. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): B60L7/18
Inventor 夏新顺樊华
Owner 上海瑞华新能源汽车有限公司
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