Energy management system and management method for an electric vehicle
An electric vehicle and energy management technology, applied in electric vehicles, vehicle energy storage, capacitor traction, etc., can solve the problems of control, inability to discharge power distribution of batteries and supercapacitors, and inefficient use of composite power supplies, and achieve increased discharge. The effect of current and discharge time, improving fuel economy, and reducing discharge time
Active Publication Date: 2017-07-28
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the existing energy management system of plug-in hybrid electric vehicles cannot reasonably control the distribution of the discharge power of the battery and supercapacitor according to its driving conditions, which leads to the inefficiency of the composite power supply.
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
[0065] Attached below Figure 1-7 The energy management system and management method of the electric vehicle of the present invention will be described in detail.
[0066] Such as figure 1 As shown, the energy management system 1 of the electric vehicle of the present invention includes a vehicle speed acquisition and analysis module 11 , a vehicle speed prediction module 12 and a strategy control calculation module 13 . Preferably, the vehicle speed acquisition and analysis module 11, the vehicle speed prediction module 12 and the policy control calculation module 13 are integrated in the same controller, so as to facilitate data transmission and processing.
[0067] The vehicle speed acquisition and analysis module 11 is connected with the vehicle speed sensor 2 and receives the vehicle speed information of the electric vehicle detected by the vehicle speed sensor 2 in real time, and the vehicle speed acquisition and analysis module 11 records the received vehicle speed inf...
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 relates to the field of energy management of electric automobiles, and provides an energy management method for an electric automobile, so that the running cost of the hybrid power electric automobile is lowered. Automobile speed information of the electric automobile is collected and analyzed, and the running working condition type of the electric automobile is identified through the average automobile speed Va or / and the highest automobile speed Vmax of the electric automobile; the corresponding Markov probability transition torque is selected according to the working condition type, so that the predicted automobile speed Vk+n of the electric automobile is obtained; and according to the predicted automobile speed Vk+n, control commands are sent to an auxiliary power unit (APU) controller and a composite power supply controller through a composite power supply control strategy optimized by the Bellman dynamic programming theory, so that the discharge power of an APU system and a composite power supply is equal to the required power PND of a driving motor, and the power consumption of the composite power supply is the minimum. The energy management method is used for managing energy of the composite power supply of the electric automobile, so that the number of use times of a super-capacitor is increased, the working time of the APU system is shortened, and the fuel economy of the electric automobile is improved.
Description
technical field [0001] The invention relates to the field of energy management of electric vehicles, in particular to an energy management system and management method of electric vehicles. Background technique [0002] With the increasingly serious urban air pollution, more and more attention has been paid to energy-saving and environmentally friendly electric vehicles, and they have gradually become the focus of the development of automobile companies. Although the existing pure electric vehicles can achieve zero emission of air pollutants during driving, the short driving range of pure electric vehicles and the long time spent charging power batteries seriously restrict the promotion of pure electric vehicles. [0003] In order to improve the mileage of electric vehicles and reduce pollution, a plug-in hybrid electric vehicle has been introduced on the market. During driving, when in a traffic jam, the plug-in hybrid electric vehicle can work in a pure electric mode, the...
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): B60L11/00B60L11/18
CPCB60L50/40B60L58/10B60L2240/12Y02T10/70
Inventor 熊瑞张硕何洪文孙逢春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY