Energy management method and system of hybrid power vehicle
A technology of a hybrid vehicle and an energy management system, which is applied in the energy management field of a hybrid vehicle, can solve the problems of over-discharge of a power battery and the insufficiency of energy recovery power, and achieve the effect of preventing over-discharge
Active Publication Date: 2018-08-31
GEELY AUTOMOBILE INST NINGBO CO LTD +1
View PDF5 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] An object of the present invention is to solve the problem in the prior art that when the hybrid vehicle is coasting or lightly braked, the power of the power battery is low and the power of the high-voltage accessories, that is, the high-voltage electrical components, is high , the energy recovery power cannot meet the technical problem of power battery over-discharge caused by high-voltage accessory power
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
[0037] figure 1 It is a working principle diagram of an engine gearbox of a hybrid vehicle according to an embodiment of the present invention. Such as figure 1 As shown, the hybrid vehicle includes an engine 1, a dual-clutch gearbox, a motor and a power battery, and the dual-clutch gearbox includes a first clutch 2, a second clutch 3, an odd shaft 4 and an even shaft 5, and the first clutch 2 is arranged on On the odd shaft 4, between the engine 1 and the odd gear 6 on the odd shaft 4, the second clutch 3 is arranged on the even shaft 5, and between the engine 1 and the even gear 7 on the even shaft 5 During the period, the motor is suspended on the even-numbered shaft 5, and is connected with the engine 1 through the second clutch 3. Wherein, the dual-clutch gearbox may be, for example, a 7DCTH gearbox. Wherein, the odd gear 6 can include 1st gear, 3rd gear, 5th gear and 7th gear. The even gear 7 may include 2nd gear, 4th gear and 6th gear. in, figure 1 Among them, C1 ...
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 provides an energy management method and system of a hybrid power vehicle. The energy management method comprises the steps that the surplus electric quantity value of a power battery, energy recovery power and high-voltage accessory power of the hybrid power vehicle under the downhill sliding working condition are obtained; when the surplus electric quantity value is smaller than afirst preset electric quantity value and the energy recovery power is larger than the high-voltage accessory power, energy recovery is conducted according to the original energy recovery power; and when the surplus electric quantity value is smaller than the first preset electric quantity value and the energy recovery power is smaller than or equal to the high-voltage accessory power, a motor unloads the torque during energy recovery and loads the target torque transmitted by an engine for traveling electric generation, wherein the electric generating torque of the motor is larger than the torque of the engine. According to the energy management method and system of a hybrid power vehicle, traveling electric generation can be conducted when the surplus electric quantity value is smaller than the first preset electric quantity value and the energy recovery power is smaller than or equal to the high-voltage accessory power, and accordingly over discharge of the power battery is prevented.
Description
technical field [0001] The invention relates to the technical field of energy management of hybrid vehicles, in particular to an energy management method and system of hybrid vehicles. Background technique [0002] The drivetrain of a hybrid vehicle may employ an automatic transmission. Automatic transmission refers to a transmission that automatically selects and shifts gears according to engine operating conditions and vehicle speed. When the vehicle is coasting, the hybrid vehicle can continue to drive only by the inertia of the vehicle without the engine providing power. At this time, since the power provided by the engine is not needed, the engine can save fuel by cutting off the oil. [0003] However, when the hybrid vehicle is coasting or lightly applied to the brake, when the power of the power battery is low, and the power of the high-voltage accessories, that is, the high-voltage electrical components, is high, since the transmission clutch is in a disengaged 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 Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W20/13B60K6/38
CPCB60K6/38B60W10/06B60W10/08B60W20/13B60W2510/0657B60W2510/083Y02T10/62Y02T10/92
Inventor 张剑锋陈帅王明君白小劲李进尹兴起何付同文增友
Owner GEELY AUTOMOBILE INST NINGBO CO LTD