Control method for cooling fan of extended-range electric vehicle
A cooling fan and control method technology, applied in the control of coolant flow, engine cooling, pump control, etc., can solve the problems of complex control strategies and increased manufacturing costs, and achieve the effects of convenient control and cost reduction
Active Publication Date: 2021-07-02
DFSK MOTOR LTD CHONGQING BRANCH CO
View PDF18 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] To sum up, in the hot summer, the engine system, electric drive system and air conditioning system (refrigeration) of the range-extending electric vehicle all need to turn on the fans for cooling. Independent fan controller, but the control strategy is still very complicated to reduce the energy consumption and noise impact of the fan, and adding an independent fan controller will increase the manufacturing cost
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
[0078] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0079] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or stated , the term "plurality" refers to two or more; the terms "connection", "fixation" and so on should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated Connected, or electrically connected; either directly or indirectly throu...
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 present application provides a method for controlling a cooling fan of an extended-range electric vehicle, which includes: separately obtaining the first PWM speed regulation value, the second PWM speed regulation value and the Three PWM speed regulation values; determine the compensation value according to the first PWM speed regulation value, the second PWM speed regulation value and the third PWM speed regulation value; obtain the first PWM speed regulation value, the second PWM speed regulation value and the third PWM speed regulation value The maximum PWM value in the speed value; determine the running PWM value of the fan according to the maximum PWM value and compensation value. This application adopts the matching control of PWM value and compensation value, so that the fan can simultaneously take into account the needs of three different systems for the fan under different working conditions, without adding an additional fan controller, which facilitates control and reduces costs .
Description
technical field [0001] The present application relates to the technical field of automobiles, in particular to a method for controlling a cooling fan of an extended-range electric vehicle. Background technique [0002] As a new energy vehicle, the extended-range electric vehicle introduces a fuel engine system, which can start the engine to charge the battery when the battery is low, which can significantly increase the cruising range and has the advantages of high fuel economy and low emissions. [0003] The engine has heat dissipation requirements when it is working, and the electric drive system also has heat dissipation requirements when it is working. For extended-range electric vehicles that use battery water cooling systems, the heat dissipation of the engine system and electric drive system is mainly in the form of air cooling, that is, through electronic fans. When the compressor is working, when the pressure of the air conditioning system reaches a certain value, i...
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 Patent Type & Authority Patents(China)
IPC IPC(8): B60K11/06B60H1/00F01P7/04F04D27/00
CPCB60H1/00828B60K11/06F01P7/04F04D27/004
Inventor 许林周林冯彬
Owner DFSK MOTOR LTD CHONGQING BRANCH CO