Control system and control method of hybrid electrical vehicle (HEV)
A hybrid electric vehicle and control system technology, applied in the field of hybrid electric vehicle control and hybrid electric vehicle control system, can solve the problems of weak vehicle power, reduced engine drive efficiency, and short pure electric mileage, etc. Achieve the effect of reducing the risk of unevenness, avoiding frequent start and stop phenomena, and improving energy utilization
A hybrid electric vehicle and control system technology, applied in the field of hybrid electric vehicle control and hybrid electric vehicle control system, can solve the problems of weak vehicle power, reduced engine drive efficiency, and short pure electric mileage, etc. Achieve the effect of reducing the risk of unevenness, avoiding frequent start and stop phenomena, and improving energy utilization
CN104417544AActive Publication Date: 2015-03-18BYD CO LTD
Image
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
[0032] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.
[0033] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and are not intended to limit the invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplificat...
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
A hybrid electrical vehicle (HEV) control system and method, the control system comprising a transmission device (10), an engine power subsystem (20), a motor power subsystem (30) and a controller (40); the controller (40) enables the HEV to enter a hybrid power economical mode by controlling the engine power subsystem (20) and the motor power subsystem (30); if a detected current gradient signal is below or equal to a gradient lower threshold, and the SOC of a power battery (7) is below or equal to a first electric quantity threshold, or if the current gradient signal is below or equal to the gradient lower threshold, and the maximum allowable discharge power of the power battery (7) is below or equal to a first power threshold, then the controller (40) controls the HEV to operate in a low-power mode. In a parallel connection, the control system enables easy power matching, and provides high conversion efficiency and a high starting point of an engine, effectively reducing fuel consumption and emissions, reducing frequent engine start and stop, thus extending the service life of a starter, reducing noise during vehicle travel, and improving driving comfort.
Description
Technical field [0001] The present invention relates to the field of automobile technology, in particular to a control system of a hybrid electric vehicle and a control method of a hybrid electric vehicle. Background technique [0002] Hybrid Electrical Vehicle (Hybrid Electrical Vehicle, referred to as HEV) refers to a vehicle equipped with two power sources, namely, a heat power source (generated by a traditional gasoline engine or a diesel engine) and an electric power source (generated by a battery and a motor). By using electric motors in hybrid vehicles, the power system can be flexibly adjusted according to the actual operating conditions of the vehicle, while the engine is kept working in the area with the best overall performance, thereby reducing fuel consumption and emissions. [0003] Some of the existing hybrid vehicles use a series-parallel hybrid system, which is characterized in that the internal combustion engine system and the motor drive system each have a set of...
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
18 Mar 2015
Publication
CN104417544A
- IPC
- B60W20/00; B60W10/06; B60W10/08; B60W10/26; B60W40/076
- CPC
- B60W20/00; B60W10/06; B60W10/26; B60W10/08; B60W40/076; B60W2510/244; B60W2552/15; B60W50/082
- Inventors
- 陈昊; 阮鸥