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Method for calculating and processing accelerator pedal opening degree of pure electric vehicle

A technology of accelerator pedal opening and pedal opening, applied in the field of calculation and processing of accelerator pedal opening of pure electric vehicles, can solve problems such as insufficient linearity judgment, achieve accurate calculation and processing, and meet the effect of driving needs

Active Publication Date: 2020-04-21
郑州意昂新能源汽车科技有限公司
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  • Abstract
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Problems solved by technology

[0004] At present, the relatively mature technology is the calculation of the opening of the driving pedal under the condition of no fault, and on the one hand, whether there is a fault and the processing measures under the fault state are more concentrated on the detection of its consistency, and the judgment of its linearity Insufficient; on the other hand, the arbitration process under the virtual pedal opening also needs to be improved. Based on this, the patent of the present invention proposes a calculation and processing method for the accelerator pedal opening of a pure electric vehicle

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  • Method for calculating and processing accelerator pedal opening degree of pure electric vehicle
  • Method for calculating and processing accelerator pedal opening degree of pure electric vehicle
  • Method for calculating and processing accelerator pedal opening degree of pure electric vehicle

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Embodiment Construction

[0046] Now we will describe the specific implementation manner of the present invention in further detail in conjunction with the accompanying drawings.

[0047] 1. Two-way voltage acquisition:

[0048] The vehicle controller collects two accelerator pedal voltage values ​​U based on the position of the accelerator pedal sensor. 1 , U 2 ;

[0049] 2. Judgment of the validity of the two voltages:

[0050] Limit value based on accelerator pedal characteristic curve The validity of the two collected voltages is judged. If the collected voltage is within the corresponding voltage range and valid for Δn time, it is considered that the voltage collected by this channel is valid, otherwise it is considered invalid. Where Δn represents the duration for which the voltage is valid, Indicates the lower limit of the accelerator pedal signal 1 initial position voltage, Indicates the upper limit of the accelerator pedal signal 1 full load position voltage, Indicates the lower lim...

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Abstract

The invention relates to a method for calculating and processing the accelerator pedal opening degree of a pure electric vehicle. In the prior art, in calculation of the accelerator pedal opening degree without faults, processing measures are focused on consistency detection without faults or at fault state, and determination on the linearity is insufficient. The method for calculating and processing the accelerator pedal opening degree of a pure electric vehicle is provided and comprises the steps: 1, acquisition of two paths of voltage; 2, judgment on effectiveness of the two paths of voltage; 3, zero pedal opening degree identifying; 4, two paths of voltage opening degree calculating; 5, two paths of pedals linearity judging; 6, two paths of pedal synchronization degree judging; step 7,pedal opening degree output processing; and 8, virtual pedal opening degree calculating. According to the method, the opening degree of the accelerator pedal can be accurately calculated and processed, the driving requirement of a driver is met as much as possible, and safety guarantee is provided for the performance such as the dynamic property and comfort of a vehicle.

Description

technical field [0001] The invention relates to the field of control of a pure electric vehicle, in particular to a calculation and processing method for an accelerator pedal opening of a pure electric vehicle. Background technique [0002] In pure electric vehicles, the accelerator pedal is one of the key components for the driver to operate the vehicle. The accelerator pedal opening signal can reflect the power demand of the vehicle and reflect the driver's driving intention. The vehicle control system obtains the power demand torque command through the accelerator pedal opening signal, and sends it to the motor controller to meet the corresponding acceleration demand. [0003] Therefore, whether the opening of the accelerator pedal can accurately reflect the driver's driving intention plays a key role in the dynamic performance and safety of the vehicle. [0004] At present, the more mature technology is the calculation of the opening of the driving pedal under no fault ...

Claims

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Application Information

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IPC IPC(8): B60L15/20
CPCB60L15/20B60L2250/26Y02T10/72
Inventor 王振伟史国军李影博李世玉
Owner 郑州意昂新能源汽车科技有限公司
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