Control method of extended-range driving system

A technology of a drive system and a control method, which is applied to the layout of multiple prime movers of a general power plant, motor vehicles, electric vehicles, etc., and can solve problems such as reduced efficiency and NVH performance, and increased cruising range of the vehicle

Active Publication Date: 2020-10-30
SHANGHAI AUTOMOBILE GEAR WORKS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the defects of the prior art that the layout size is large and the efficiency and NVH performance are reduced due to the complex mechanical structure, and proposes a control method for the extended-range drive system, which improves the charging efficiency of the entire vehicle and increases the cruising range of the entire vehicle

Method used

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  • Control method of extended-range driving system
  • Control method of extended-range driving system
  • Control method of extended-range driving system

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Embodiment Construction

[0022] The range-extending driving system of this embodiment includes: a controller, a vehicle condition sensor, a driving device and a power generating device, wherein the controller is connected to the vehicle condition sensor, the driving device and the generating device respectively.

[0023] Such as figure 1 As shown, the power generating device includes: an engine 1, a speed increasing mechanism 16 and a generator 7, wherein: the engine 1 is connected to the speed increasing mechanism through a clutch 2, and the first output shaft 5 of the speed increasing mechanism 16 is connected to the generator 7 .

[0024] Described speed-up mechanism 16 comprises: the first input shaft 4 with the first driving gear 3 and the first output shaft 5 with the first driven gear 6, wherein: the first driving gear 3 and the first driven gear The gears 6 mesh with each other.

[0025] Such as figure 2 As shown, the drive device includes: a reduction mechanism 17 and a drive motor 8 , wh...

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Abstract

The invention discloses a control method of an extended-range driving system. Torque required by the controller is calculated in advance, and output parameters of the whole vehicle controller are determined. The whole vehicle controller determines the most suitable working mode of the vehicle according to real-time vehicle condition information and vehicle attributes collected by the vehicle condition sensor, and outputs a driving mode instruction and a driving torque instruction to the driving device and the power generation device, so that the working condition of the extended-range drivingsystem is optimal; the working modes comprise a pure electric driving working mode, a driving charging working mode and a parking charging working mode. The control methodconforms to the latest definition of the extended-range electric vehicle, the driving device and the power generation device are arranged in an integrated mode or a separated mode, the problem that the arrangement space of the whole vehicle is insufficient is effectively solved, and the cost of the whole vehicle is reduced. A speed increasing mechanism is additionally arranged between the engine and the generator, and the charging efficiency and endurance mileage of the whole vehicle are improved through the controller.

Description

technical field [0001] The invention relates to a technology in the field of electric vehicles, in particular to a control method for an extended-range driving system. Background technique [0002] As an important means of transportation that meets environmental and energy requirements, new energy vehicles are increasingly valued by countries all over the world. At present, most of the domestic new energy extended-range electric vehicle drive systems are modified on the traditional automatic transmission. Both the drive motor and the generator motor are equipped with corresponding gearboxes, which have high cost, large layout size, and efficiency and NVH performance caused by complex mechanical structures. issues such as reduction. In addition, the engine power source of most extended-range electric motors is connected to the wheels, which can directly participate in the driving of the whole vehicle, which does not meet the latest definition of extended-range electric vehic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/40B60L50/62B60W20/10B60W20/20
CPCB60K6/40B60L50/62B60W20/10B60W20/20Y02T10/62Y02T10/70
Inventor 柴旭郑闽皖钟辰宇钱骏叶佳全
Owner SHANGHAI AUTOMOBILE GEAR WORKS
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