Simulation analysis method for driving performance index of pure electric bus based on motor thermal coupling
A pure electric bus and driving performance technology, which is applied in the field of simulation analysis of driving performance indicators of pure electric buses, can solve problems such as difficulty in laying out a vehicle model, and achieve the effect of avoiding problems.
Pending Publication Date: 2022-01-14
XIAMEN UNIV
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This patent is only applicable to the motor field, and it is difficult to layout it into the calculation of the vehicle model
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] The present invention will be further described below through specific embodiments.
[0050] Such as figure 1 It is the overall design drawing of the present invention, and it first calculates and emulates Ansys motor temperature according to relevant formulas; And the emulation result is calculated as Simulink motor thermal coupling model and the temperature judgment basis after emulation; If both temperature error conditions meet the requirements , then the influence of the motor thermal coupling on the driving performance index of the pure electric bus is obtained according to the working conditions;
[0051] combine figure 2 and image 3 , a simulation analysis method for driving performance indicators of pure electric buses based on motor thermal coupling, including the following steps:
[0052] S101: Calculate the thermal parameters of the motor model and the heat generation rate and heat dissipation rate in the temperature field analysis; establish the motor ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a simulation analysis method for driving performance indexes of a pure electric bus based on motor thermal coupling. The method comprises the following steps: calculating thermal parameters of a motor model and a heat generation rate and a heat dissipation rate in temperature field analysis; establishing the motor model in Ansys Workbench, and carrying out input, grid division and simulation of boundary conditions and loads; establishing a motor thermal coupling model in Simulink, and verifying the motor thermal coupling model established in the Simulink by using the motor model established in the Ansys Workbench; establishing a battery model, a speed reducer model, a whole vehicle dynamics model and a driver model in the Simulink, and establishing a whole vehicle model in combination with the motor thermal coupling model; and simulating the whole vehicle model, and analyzing influences of motor thermal coupling on driving performance indexes of a pure electric bus. According to the method provided by the invention, influences of motor temperature rise on whole vehicle driving indexes of a pure electric bus can be known in advance, so that strategy adjustment can be made in time, and a series of problems caused by motor overheating are avoided.
Description
technical field [0001] The invention relates to the field of analysis of pure electric passenger cars, in particular to a simulation analysis method for driving performance indexes of pure electric passenger cars based on motor thermal coupling. Background technique [0002] In the hot summer, it is very easy for the motor temperature to be too high. Once it occurs, and the motor cooling system of the electric bus is not turned on in time or fails, it may directly affect the normal operation of the pure electric bus, thereby reducing the working efficiency and service life of the bus, which will not only cause huge economic losses, but also cause major personnel losses. casualties. [0003] Chinese invention patent CN108763165A proposes a method for calculating the temperature of a hybrid electric motor, which can deduce the change of the preset motor temperature according to some working condition parameters. This patent is only applicable to the motor field, and it is di...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F30/20G06Q10/06G06F119/08
CPCG06F30/20G06Q10/06393G06F2119/08
Inventor 侯亮张文博卜祥建王少杰
Owner XIAMEN UNIV