A hybrid electric vehicle idling power generation control method and system
A hybrid vehicle, idle power generation technology, applied in hybrid vehicles, motor vehicles, control devices, etc., can solve problems such as energy waste of fuel combustion and reduction of engine power generation efficiency
Active Publication Date: 2020-07-07
GEELY AUTOMOBILE INST NINGBO CO LTD +1
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the prior art, the strategy of idling power generation is as follows: the vehicle controller sends the idle speed control target to the engine control unit, and the engine control unit performs idle speed control; the vehicle controller sends the power generation target torque to the motor controller, and the motor performs torque control ; That is, the engine uses part of the torque of the engine for power generation while the idle speed is under closed-loop control, which causes a part of the fuel combustion energy to be wasted and reduces the power generation efficiency of the engine
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
[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0059]It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated...
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 method and system for controlling idle power generation of a hybrid electric vehicle. The method includes the following steps: when the vehicle is in idling condition, control the engine to drive the motor to rotate; obtain the power generation power of the engine; and according to the power generation power of the engine , calculate the target speed of the motor and the target torque of the engine; control the engine to enter the torque control mode, and adjust the current torque of the engine to the target torque; control the motor to enter the speed control mode, and adjust the The current speed of the motor is adjusted to the target speed; idle power generation is performed based on the adjusted engine and motor. The invention enables the engine to generate electricity under idling conditions, changes the control modes of the engine and motor, eliminates the torque reserve provided for the transmission system under idling conditions of the engine, improves the power generation efficiency, and ensures a smooth working process.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a method and system for controlling idling power generation of a hybrid electric vehicle. Background technique [0002] With the continuous reduction of traditional energy sources, the continuous improvement of environmental protection awareness and the continuous improvement of vehicle emission-related regulations, new energy vehicles have received more and more attention. Hybrid electric vehicles have been widely used because of their good power, fuel economy and low emissions. [0003] When the hybrid electric vehicle is in the parking state, the engine runs under no load and is in an idling state. Most of the prior art uses the engine to generate electricity at this time, which can improve fuel economy. In a single-motor hybrid / plug-in hybrid vehicle, the motor undertakes two tasks of power assist and power generation. Therefore, when the vehicle is in a high-voltage sta...
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): B60W20/15B60W10/06B60W10/08
CPCB60W20/15B60W10/06B60W10/08B60W2510/0638B60W2520/10B60W2540/10B60W2510/244B60W2710/081B60W2710/083B60W2710/0666Y02T10/62B60K6/48B60W2510/083B60W10/26B60K6/20B60W2510/081B60W2710/0644B60W2510/0657B60W30/1882B60W2510/0628B60W30/18054
Inventor 张剑锋叶先军官彬彬宇文志强王雪飞
Owner GEELY AUTOMOBILE INST NINGBO CO LTD