Energy switching control method and energy switching control system for hybrid electric vehicle in multiple operating modes

A hybrid vehicle and working mode technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as the inability to ensure the best matching of the power system, the difficulty in applying real vehicle control, and the inability to obtain global optimality. The effect of improving endurance, saving fuel and simple structure

CN102556055AInactive Publication Date: 2012-07-11HENAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed are an energy switching control method and an energy switching control system for a hybrid electric vehicle in multiple operating modes. The energy switching control method includes the steps: firstly, according to vehicle running environments and road conditions detected in real time by a vehicular GPS (global positioning system) and a sensor, and according to current running road condition information of the hybrid electric vehicle, determining the corresponding operating modes of the vehicle, wherein the operating modes specifically include an engine-driven operating mode, a motor-driven operating mode, an engine and motor hybrid driven operating mode and an energy feedback and regenerative brake operating mode; and then designing a multi-mode switching control rule for the driving modes in terms of the running road conditions, and designing corresponding controllers for the operating modes respectively. According to the running environments and the road conditions, the energy switching control method and the energy switching control system control the optimal vehicle driving modes so as to reduce emission of vehicle exhaust, save fuel oil consumption, accelerate development of environment-friendly vehicles and green vehicles and improve endurance of the hybrid electric vehicle.
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Description

[0001] technical field

[0002] The invention belongs to the field of energy management and control of a hybrid electric vehicle, in particular to an energy switching control method and system for a hybrid electric vehicle in multiple working modes. Background technique

[0003] In recent years, with the global environmental and energy issues becoming more and more prominent, the development of new vehicles with low emissions and low fuel consumption has become the primary task of the development of the automotive industry today. Hybrid electric vehicle is a new type of clean energy vehicle developed to solve the energy crisis and vehicle emission problems. It combines the advantages of pure electric vehicles and traditional fuel vehicles. It not only has the characteristics of energy saving and environmental protection of pure electric vehicles, but also improves the fuel economy of the whole vehicle. and emission performance, and inherited the advantages of long continuous...

Examples

Embodiment Construction

[0031] Such as figure 1 as shown, figure 1 The thick solid line in the figure is the mechanical connection, the arrow with the arrow is the control signal, and the dotted line is the electrical connection. The control system used in the energy switching control method under the multi-working mode of the hybrid electric vehicle is mainly composed of the system master controller 1, GPS positioning module 2, Sensor real-time detection module 3, engine 4, motor 5, power synthesis device 6, battery pack 7 and speed changer 12 constitute, the acceleration signal 15, brake signal 16 of hybrid electric vehicle and the signal output by GPS positioning module and sensor real-time detection module are all Input to the total system controller 1, the total system controller 1 has four signal output terminals A, B, C, and D, the A signal output terminal is input to the engine controller 8, and the output terminal of the engine controller 8 is connected to the engine 4, The output end of th...