A gasoline-electric hybrid multi-mode vehicle drive system and control method

A multi-mode, hybrid technology, applied in the layout of multiple different prime movers of hybrid vehicles, general power plants, and motor vehicles, etc., can solve the problems of complex chassis structure and handling, and achieve improved fuel efficiency, Avoid the effect of high fuel consumption and simple chassis structure

Active Publication Date: 2019-06-04
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional internal combustion engine-driven vehicles, its chassis structure and handling have become more complex

Method used

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  • A gasoline-electric hybrid multi-mode vehicle drive system and control method
  • A gasoline-electric hybrid multi-mode vehicle drive system and control method
  • A gasoline-electric hybrid multi-mode vehicle drive system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 As shown, a fuel-electric hybrid multi-mode vehicle drive system is mainly composed of an engine (1), an ISG motor (21), hub motors (22) and (23), clutches (31) and (32), an overrunning clutch (41 ) and (42), control unit ECU (5), battery pack (6), motor controller (7), wheels (81) and (82), multiple rotational speed sensors (91), (92), (93) , (94), (95) and power transmission shaft (10) etc. are formed.

[0029] One end of the rotor of the ISG motor (21) is connected to the output end of the engine (1) through the clutch (31), and the other end is respectively connected to one end of the overrunning clutches (41) and (42) through the clutch (32) and the transmission shaft (10). The other end of clutch (41), (42) is then connected with wheel (81), (82) respectively; Hub motor (22) and (23) are installed in the wheel (81), (82) respectively, can directly drive vehicle . The control unit ECU (5) sends instructions to clutches (31) and (32), overrunning cl...

Embodiment example 2

[0053] like figure 2 As shown, a fuel-electric hybrid multi-mode vehicle drive system is mainly composed of an engine (1), an ISG motor (21), an in-wheel motor (22) and (23), a clutch (31), an overrunning clutch (41) and (42 ), control unit ECU (5), battery pack (6), motor controller (7), wheels (81) and (82) and multiple rotational speed sensors (91), (92), (93), (94) , (95) and so on.

[0054] Its difference with Embodiment 1 is that the clutch (32) has been removed. The difference between the various working modes of the hybrid electric vehicle and Embodiment 1 lies in the electric starting mode: when the vehicle starts, the ISG motor (5) and the transmission shaft (10) omit the connection of the clutch, and the ISG motor (5) ) is directly connected with the transmission shaft (10), and the ISG motor (5) no longer functions as a starter.

[0055] In the hybrid drive mode, the pure engine drive mode, the pure electric drive mode, the regenerative braking mode and the rev...

Embodiment approach 3

[0057] like image 3 As shown, a fuel-electric hybrid multi-mode vehicle drive system is mainly composed of an engine (1), an ISG motor (21), an in-wheel motor (22) and (23), a clutch (32), an overrunning clutch (41) and (42 ), control unit ECU (5), battery pack (6), motor controller (7), wheels (81) and (82) and multiple rotational speed sensors (91), (92), (93), (94) , (95) and so on.

[0058] It differs from Embodiment 1 in that the clutch (31) is removed, and the engine (1) is directly connected to the rotor shaft of the ISG motor (5). The various modes of operation of this scheme hybrid electric vehicle are different from embodiment 1 in that:

[0059] ●Pure electric drive mode

[0060] Since the engine (1) is directly connected to the rotor shaft of the ISG motor (5), both always have the same rotational speed. Therefore, if the vehicle is to run in pure electric mode, the vehicle can only be powered by the hub motor (22) and the hub motor (23), and at this time, the...

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Abstract

The invention discloses a gasoline-electric hybrid multi-mode vehicle drive system, which is mainly composed of an engine, two clutches, an ISG motor, two overrunning clutches, two wheel hub motors, a control unit ECU, a motor controller, a battery pack and the like. The two ends of the ISG motor rotor are respectively connected to the engine output end and the transmission shaft through the first and second clutches, and the two ends of each overrunning clutch are respectively connected to the transmission shaft and the corresponding wheel; the hub motor is installed in the wheel, which can directly drive the vehicle run. The control unit ECU sends instructions to each clutch and motor controller according to the signal fed back by the sensor to control the coupling / disengagement of the clutch and the power output of the motor, and achieve the purpose of switching the working mode. The multi-mode feature of the system increases the chances of the engine working in the high-efficiency zone; the setting of the overrunning clutch can not only realize the differential function in certain modes, but also reduce the energy consumption of the additional load and improve the system efficiency.

Description

technical field [0001] The invention relates to an automobile driving system and a control method, in particular to a kind of oil-electric hybrid electric vehicle driving system, which can realize multiple driving modes. Background technique [0002] The increasingly serious energy and environmental crisis has brought enormous pressure to traditional vehicles. Therefore, the development of ultra-low-emission or zero-emission electric vehicles has become an important way to solve this problem. There is no doubt that pure electric vehicles are the best way to achieve zero emissions. Countries around the world also regard pure electric vehicles as one of the focuses of research and development, especially electric vehicles driven by in-wheel motors because of their simplified overall vehicle layout and active chassis control. As well as the obvious technical advantages in terms of ease of manipulation, it has attracted widespread attention from industry and academia. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K7/00B60K6/485B60K6/44B60K6/46
CPCB60K6/44B60K6/46B60K6/485B60K7/0007Y02T10/62Y02T10/92
Inventor 谭迪
Owner SHANDONG UNIV OF TECH
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