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A battery protection control method based on supercapacitor SOC to identify faults

A super capacitor, protection and control technology, applied in capacitor traction, battery/battery traction, electric vehicles, etc., can solve the problem of no treatment method, and achieve the effect of prolonging life and avoiding high current discharge.

Active Publication Date: 2018-04-17
JIANGSU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there is currently no processing method for supercapacitor SOC applied to hybrid power electric vehicles to identify faults

Method used

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  • A battery protection control method based on supercapacitor SOC to identify faults
  • A battery protection control method based on supercapacitor SOC to identify faults

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0020] like figure 1 As shown, a hardware structure diagram of a battery protection control method based on supercapacitor SOC fault identification, the accelerator pedal sensor and the brake pedal sensor are used to collect the information of the accelerator pedal and the brake pedal to judge the driver's driving intention; The sensor is used to collect the speed of the electric vehicle, and the information collected by the three sensors is input to the torque coupler together; the torque coupler calculates the torque required by the vehicle at this time based on the information; the power calculation module is based on the information obtained by the torque coupler. The calculated torque is used to calculate the power required by the vehicle at this time; the ...

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Abstract

The invention discloses a storage battery protection control method based on super-capacitor SOC fault identification and belongs to the field of composite power electric vehicles. When a driver intends to accelerate, a management system of a super capacitor judges the state of the super capacitor under the condition when estimating that the obtained super capacitor SOC value is estimated to be smaller than the threshold value of the super capacitor SOC value; if the super capacitor is in a misjudgment state, the threshold value of the super capacitor SOC value, the current vehicle speed and the required torque are used as input parameters to be together input into a power divider so that power distribution between the super capacitor and a storage battery can be conducted; and if the super capacitor is in a fault state, an accelerator pedal is controlled through an accelerator pedal controller, an alarm device is started, and displaying of an instrument panel is conducted. The storage battery protection control method based on super-capacitor SOC fault identification is a control method for super-capacitor SOC fault identification and mainly used for the condition that the detected super capacitor SOC value is smaller than the threshold value when the driver prepares to accelerate, the storage battery is effectively protected, high-current discharge of the storage battery is avoided, and the life of the storage battery is prolonged.

Description

technical field [0001] The invention relates to a storage battery protection method in the field of composite power electric vehicles, in particular to a storage battery protection control method for identifying faults based on supercapacitor SOC values. Background technique [0002] In today's energy crisis and worsening environmental pollution, the development of electric vehicles is particularly important, especially hybrid electric vehicles. Compared with single-battery electric vehicles, composite power electric vehicles can play the role of peak shaving and valley filling through supercapacitors. In the case of vehicle acceleration and other situations that require high power, the supercapacitor and the battery supply power to the outside, thereby reducing the output power of the battery, thereby reducing the output current of the battery and prolonging the life of the battery. [0003] Generally speaking, in the designed control strategy, as long as the electric vehic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00B60L11/00B60L11/18
CPCB60L3/0046B60L50/40B60L50/50Y02T10/70
Inventor 盘朝奉戴伟陈燎陈龙江浩斌汪少华袁朝春王丽梅
Owner JIANGSU UNIV
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