Self-adaptive control method for plug-in type parallel hybrid electric vehicle
A hybrid electric vehicle, adaptive control technology, applied in the direction of hybrid electric vehicles, electric vehicle charging technology, motor vehicles, etc., can solve the problems of poor adaptability to PHEV working conditions, etc., achieve low cost, easy to implement, and improve economic efficiency
Inactive Publication Date: 2016-07-20
JILIN UNIV
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Problems solved by technology
[0005] In order to solve the problem of poor adaptability of the PHEV operating conditions of the threshold value control in the prior art, the present invention provides a plug-in hybrid electric vehicle adaptive control method based on travel mileage characteristics, mainly including travel mileage characteristic recognition algorithm and based on Two parts of PHEV parameter adaptive control algorithm with reference to SOC
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[0037] The invention will be further described below in conjunction with the accompanying drawings.
[0038] refer to figure 1 , is the structure diagram of plug-in parallel hybrid electric vehicle. The parallel PHEVs in this example adopt a coaxial parallel structure. Among them, the motor is coaxially installed on the input shaft of the automatic transmission, and the battery can be charged by an external charger; the vehicle is equipped with an accelerator pedal position sensor, a brake pedal position sensor, a vehicle speed sensor, a vehicle controller (HUC), and an engine controller (ECU), motor controller (MCU), automatic transmission controller (TCU), battery management unit (BMU), clock and calendar module (TCM), all components exchange information through the CAN bus. In addition to the main control microcontroller, the vehicle controller (HCU) also has a coprocessor and a static memory. The coprocessor is mainly used for the acquisition and processing of the vehic...
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The invention discloses a self-adaptive control method for a plug-in type parallel hybrid electric vehicle. The method aims at solving the problem that a PHEV controlled by a threshold value in the prior art is poor in working condition adaptability. The method includes the following steps that travel mileage characteristics are counted and recognized, wherein the travel mileage of work days and the travel mileage of rest days are counted, the travel mileage characteristic convergence of the work days and the ravel mileage characteristic convergence of the rest days are verified, and when the travel mileage characteristic of the work days and the ravel mileage characteristic of the rest days meet the convergence condition, accumulated average travel mileage curves of the work days and holidays in all time periods are drawn; and PHEV control parameters are adjusted in real time on line, wherein a PHEV parameter self-adaption strategy based on a reference SOC is adopted, when the vehicle enters a CD stage, the reference SOC is generated on the basis of the accumulated average travel mileage curves, generated on the basis of the first step, of the work days and the holidays in all the time periods, the PHEV control parameters are adjusted, an SOC is changed along with the reference SOC, and self-adaptive control is achieved.
Description
technical field [0001] The invention relates to a control method for a plug-in parallel hybrid electric vehicle (parallel PHEV), in particular to an adaptive control method for a plug-in parallel hybrid electric vehicle based on user travel mileage characteristics, and belongs to the technical field of new energy vehicle control. Background technique [0002] With the increasingly urgent demand for energy saving and emission reduction in our country, new energy vehicles are receiving more and more attention. Unlike conventional parallel hybrid vehicles, plug-in parallel hybrid vehicles have a larger battery capacity and can obtain additional electrical energy from the grid. The plug-in parallel hybrid electric vehicle can only rely on the electric motor to drive in the charge depleting (CD) stage, which has the advantages of zero emission and low energy consumption; Advantages of long mileage. The plug-in parallel hybrid electric vehicle has a simple structure and good ene...
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Patent Timeline
Login to View More IPC IPC(8): B60W10/06B60W10/08B60W20/12B60W20/15B60W40/00
CPCB60W10/06B60W10/08B60W40/00B60W2050/0014B60W2050/0043B60W2510/244B60W2710/0677B60W2710/086B60W2710/244B60W2530/13Y02T10/62Y02T90/14
Inventor 郭建华初亮刘翠许楠赵竟园石大排马玉哲张树彬刘初群哈林骐
Owner JILIN UNIV