Method, device and vehicle for determining slipping torque
A technology for determining methods and devices, which is applied in the field of vehicle control, can solve the problems of low-lag start and poor acceleration performance, and achieve the effects of reducing tire slippage and improving low-lag start performance and acceleration performance
Active Publication Date: 2021-11-05
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
[0004] In view of this, the present invention aims to propose a method, device and vehicle for determining slip torque, so as to solve the problems of poor starting and acceleration performance at low speed
Method used
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Embodiment Construction
[0043] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0044] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0045] refer to figure 1 , shows a flowchart of steps of a method for determining a slip torque provided in Embodiment 1 of the present invention, and the method for determining a slip torque can be applied to a vehicle.
[0046] Such as figure 1 As shown, the method for determining the slip torque may specifically include the following steps:
[0047] Step 101: When the amount of slip error is greater than zero, control the transmission of the vehicle to prohibit gear shifting.
[0048] In this application, determining the amount of slippage error may include the following steps:
[0049] Sub-step A1: Obtain wheel speed signals and accelerator pedal signals.
[0050] In the present...
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The present invention provides a slip torque determination method, device and vehicle, the method includes: when the slip error amount is greater than zero, controlling the transmission of the vehicle to prohibit gear shifting; prohibiting gear shifting in the transmission, and the If the above-mentioned slip error amount is greater than the preset slip error amount threshold, it means that the vehicle is in a severe slipping condition, and the first slip torque is determined and controlled to decrease to the preset fine-tuning slipping torque within the preset torque reduction time interval. In the torque range, that is, the slipping torque can be calculated, so that under severe slipping conditions, the slipping torque can be quickly reduced to the fine-tuning slipping torque range, so that the vehicle can accurately perform operations such as prohibiting the transmission from shifting, so as to achieve Reduce the slippage of the vehicle tires, thereby improving the low-attachment start performance and acceleration performance of the vehicle.
Description
technical field [0001] The invention relates to the technical field of vehicle control, in particular to a slip torque determination method, device and vehicle. Background technique [0002] With the development of the vehicle field, automobiles have become one of the essential tools for people to travel. Pure electric vehicles and hybrid electric vehicles have gradually become the preferred vehicles in the field of vehicles due to their low emissions, low pollution, low noise, and energy saving. important branch. [0003] At present, in order to improve the low-attachment start and acceleration performance of traditional pure electric vehicles and hybrid electric vehicles, it is usually possible to install an acceleration slip regulation (Acceleration Slip Regulation, ASR) system on the car to improve the low-attachment start-up and acceleration performance, however, The control process of the ASR system is relatively complicated and the cost is high, which makes it imposs...
Claims
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IPC IPC(8): B60W30/18
CPCB60W30/18172
Inventor 雷胜武锡斌郭凤刚邵赓华韩斌王孟琰
Owner BEIQI FOTON MOTOR CO LTD