Electronic infinite variable speed parallel type mixed power driving device

A continuously variable speed and hybrid technology, applied in power plant, hybrid vehicle, pneumatic power plant, etc., can solve the problem of small power and speed ratio range, limited speed ratio range, ability to transmit torque and power and other problems. Low efficiency and other problems, to avoid fuel consumption and exhaust emissions, less power transmission components, and improve fuel economy.

Active Publication Date: 2009-07-15
GUANGZHOU AUTOMOBILE GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the various existing power transmission systems, the hydromechanical automatic transmission (AT) has the advantages of not cutting off the power shift, smooth starting, and the torque converter adapting to resistance, but it has complex structures and manufacturing process requirements. High, low transmission efficiency of hydraulic torque converter and other disadvantages; electromechanical automatic transmission (AMT) has the advantages of high transmission efficiency and large power capacity, but it is difficult to obtain the perfect transmission characteristics of continuously variable automatic transmission; due to continuously variable transmission The transmission (CVT) can continuously change the speed ratio, so that the car can achieve the best match between the engine and the motor operating point (best economy or best power match) according to the driver's operation intention under any working condition. Thereby effectively reducing emissions and improving the fuel economy, power and ride comfort of the vehicle. Therefore, hybrid electric vehicles based on continuously variable transmission have become the preferred solution
[0005] However, as far as some types of mechanical continuously variable transmissions (CVT) currently exist, because they are actually based on friction transmission, they have the ability to transmit torque and power and low efficiency, and the available range of gear ratios (that is, the ratio of the maximum speed ratio to the minimum speed ratio of the system) is quite limited and other shortcomings, so it is generally only suitable for small-displacement cars and motorcycles with small power and speed ratio ranges, or other vehicles that only need to transmit small power. use or occasion

Method used

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  • Electronic infinite variable speed parallel type mixed power driving device
  • Electronic infinite variable speed parallel type mixed power driving device
  • Electronic infinite variable speed parallel type mixed power driving device

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Such as figure 2 As shown, an electronic continuously variable speed parallel hybrid driving device includes an engine 1, a counter-rotating double-rotor motor 4, a planetary mechanism 7, a first brake 61, a second brake 62, a battery pack 13, a control unit ECU11, a pair of fixed shaft gear pair 5 and multiple rotational speed sensors. The engine 1 is connected with the sun gear of the planetary mechanism 7 through the input shaft 31 and the first brake 61; the input shaft 31 is also provided with a fixed shaft gear pair 5, and the fixed shaft gear pair 5 is connected with the inner rotor of the counter-rotating double rotor motor 4, The outer rotor of the dual-rotor motor 4 is connected with the second brake 62 and the ring gear of the planetary mechanism 7 through a shaft. The planet carrier of the planetary mechanism 7 is connected to the driving axle 10 through the output shaft 32 , and the driving axle 10 is connected to the driving wheel 8 through the two half ...

Embodiment 2

[0068] Such as image 3 As shown, an electronic continuously variable speed parallel hybrid driving device includes an engine 1, a counter-rotating double-rotor motor 4, a planetary mechanism 7, a first brake 61, a second brake 62, a battery pack 13, a control unit ECU11, a pair of fixed shaft gear pair 5 and multiple rotational speed sensors. The engine 1 is connected to the inner rotor of the counter-rotating dual-rotor motor 4 through the input shaft 31 and the automatic controllable clutch 14, and the inner rotor is connected to the sun gear of the planetary mechanism 7 through the shaft; the outer rotor of the dual-rotor motor 4 is connected to the fixed shaft gear pair 5 , The first brake 61 is connected with the ring gear of the planetary mechanism 7 . The planet carrier of the planetary mechanism 7 is connected to the driving axle 10 through the output shaft 32 , and the driving axle 10 is connected to the driving wheel 8 through the two half shafts 9 . The battery p...

Embodiment 3

[0088] An electronic continuously variable speed parallel hybrid driving device includes an engine 1, a counter-rotating double-rotor motor 4, a planetary mechanism 7, a first brake 61, a second brake 62, a battery pack 13, a control unit ECU11, and a pair of fixed shaft gears Vice 5 and multiple speed sensors. The engine 1 is connected to the inner rotor of the counter-rotating dual-rotor motor 4 through the input shaft 31 and the automatic controllable clutch 14, and the inner rotor is connected to the sun gear of the planetary mechanism 7 through the shaft and the first brake 61; the outer rotor of the dual-rotor motor 4 passes through The fixed axis gear pair 5 and the second brake 61 are connected with the ring gear of the planetary mechanism 7 . The planet carrier of the planetary mechanism 7 is connected to the driving axle 10 through the output shaft 32 , and the driving axle 10 is connected to the driving wheel 8 through the two half shafts 9 . The battery pack 13 is...

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Abstract

The invention discloses an electronic stepless variable speed parallel type hybrid power driving device which comprises a counter-rotating double-rotor motor, a motor controller, a planetary mechanism, an accumulator set, a control unit ECU and a dead axle gear pair, wherein an input shaft of an engine is respectively connected with a sun wheel of the planetary mechanism and a gear ring by a power transmission mechanism formed by the counter-rotating double-rotor motor and the dead axle gear pair; at least one brake is connected with the sun wheel of the planetary mechanism and the gear ring; and the accumulator set is respectively electrically connected with the motor controller and the control unit ECU, and the motor controller is electrically connected with the counter-rotating double-rotor motor. The device has the advantages of compact structure, few power transmission parts and low transmission loss; the action of the brake determines different working modes, different modes have different speed ratios and torque output, the vehicle can select different modes to work according to actual power requirements, and the speed ratio range is greatly enlarged, therefore, the system can be suitable for various vehicle types with different requirements for speed ratio.

Description

technical field [0001] The invention relates to a power transmission and an automatic transmission system in a hybrid electric vehicle, in particular to a type of continuously variable parallel hybrid drive system and a design method thereof. technical background [0002] Due to the increasing awareness of environmental protection caused by energy and environmental problems, the requirements for energy saving and environmental protection of automobiles are getting higher and higher, but the related technologies of electric vehicles and fuel cell vehicles are still immature, making hybrid electric vehicles (HEV) more and more popular. Attracting people's attention, it has gradually become a development trend and is a hot topic in the current automotive field research. [0003] The method and structural form of hybrid electric vehicle power synthesis are directly related to the performance of the vehicle. At present, the structural forms of the hybrid electric vehicle power dr...

Claims

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Application Information

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IPC IPC(8): B60K6/543B60K6/48
CPCY02T10/6221Y02T10/62
Inventor 黄向东罗玉涛黄河郑方明裴锋周玉山
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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