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Remote brake diagnosis method

A remote diagnosis and brake technology, which is applied in the testing of machines/structural components, instruments, vehicles, etc., can solve the problem of reducing the input of manpower and material resources, and achieve the effect of reducing the input of manpower and material resources

Active Publication Date: 2016-06-29
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above, the present invention provides a remote diagnosis method for brakes, which can solve the existing problem that only workers can manually check the brake functions of electric vehicles, and reduce the input of manpower and material resources

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Embodiment Construction

[0026] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the brake remote diagnosis method of the present invention includes the following steps:

[0028] (1) When the user steps on the pedal, record the start time t1 and the number of pulses per unit time V1 of the motor at this moment, the current load M of the vehicle and the slope θ of the vehicle. The purpose of recording the time and the number of pulses per unit time of the motor at this moment is to calculate the speed change rate of the vehicle when the vehicle is in braking behavior.

[0029] (2) Acquire the number of pulses per unit time of the motor every 100ms until the pedal reaches the hard braking point or the time distance from the initial time exceeds 10s. When the pedal reaches the mandatory braking point, ...

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Abstract

The invention discloses a remote brake diagnosis method. When a pedal is used by a user, the position of the pedal and motor pulses of an electric automobile are monitored in real time, time and pulse in the beginning time and time and pulse when the pedal is in a strong braking point are recorded, the speed change rate of a motor is calculated and transmitted to a server for clustering analysis, a model of the change rate of the braking speed is established, and whether function of a brake is normal is determined by analyzing the load, the driving gradient and the speed change rate of the electric automobile in the braking process. Thus, the method can be used to discover whether the function of the brake is normal timely, and reduce workload of maintenance staff.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle equipment diagnosis, and in particular relates to a remote diagnosis method of a brake. Background technique [0002] With the development of network services, more and more traditional services are trying to combine with the Internet to bring better user experience and richer services. The development of the automobile industry has also brought new energy electric vehicles into people's lives, and the integration of electric vehicles and the Internet is becoming more and more closely, such as GPS positioning, electronic locks and other functions have facilitated our lives. Although electric vehicles are energy-saving, environmentally friendly and convenient to use, they also have many potential safety hazards as a means of transportation. It is very necessary to find potential safety hazards in time and reduce unnecessary losses, especially to monitor the brake function of electric vehic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 杨国青李红周会吴晨吕攀
Owner ZHEJIANG UNIV