CN102582411A - Hybrid driving system and corresponding hybrid driving method - Google Patents

Hybrid driving system and corresponding hybrid driving method Download PDF

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Publication number
CN102582411A
CN102582411A CN2012100561543A CN201210056154A CN102582411A CN 102582411 A CN102582411 A CN 102582411A CN 2012100561543 A CN2012100561543 A CN 2012100561543A CN 201210056154 A CN201210056154 A CN 201210056154A CN 102582411 A CN102582411 A CN 102582411A
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motor
engine
drive system
wheel
hybrid
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CN2012100561543A
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刘荣伟
万普鹏
杜志强
吴旭峰
金启前
由毅
吴成明
赵福全
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Priority to CN2012100561543A priority Critical patent/CN102582411A/en
Publication of CN102582411A publication Critical patent/CN102582411A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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Abstract

The invention relates to a hybrid driving system, which is arranged in a body of an automobile and comprises an engine, a first automatic transmission, a power battery, a strengthened start-stop device, a motor and an automatic clutch. The engine is connected with a front axle of an automobile wheel through the first automatic transmission to drive the front axle of the wheel, and one end of the strengthened start-stop device is connected with the engine while the other end of the strengthened start-stop device is connected with the power battery. The motor is connected with the power battery and connected with a rear axle of the automobile wheel through the automatic clutch to drive the rear axle of the wheel. The engine is quickly started and stopped by means of the strengthened start-stop device, arrangement is convenient, and power performance is promoted by means of assignment distribution of each part and control of the integral automobile.

Description

Hybrid electric drive system and corresponding hybrid power driving method
Affiliated technical field
The present invention relates to the drive system in a kind of automobile, hybrid electric drive system and corresponding hybrid power driving method in particularly a kind of automobile.
Background technology
The world today advocates energy-conserving and environment-protective, and new-energy automobile becomes the main direction of vehicle industry development.In the drive system of new-energy automobile, hybrid electric drive system because its have concurrently battery-driven car anti-emission carburetor advantage and diesel locomotive the high-energy-density advantage and extensively paid close attention to.
Existing hybrid electric drive system is as shown in Figure 1, adopts the unitized construction of driving engine 11, power-transfer clutch 12, motor 13 and automatic transmission with hydraulic torque converter 14.Driving engine 11 links to each other with motor 13 through power-transfer clutch 12 in this kind structure; When driving engine 11 and motor 13 clutches; Thereby but motor 13 direct drive automatic transmission with hydraulic torque converters 14 drive wheels 15, when glancing impact can be realized charging to the transfer of energy of feedback through motor 13 in electrokinetic cell 16; When driving engine 11 was connected with motor 13, driving engine 11 drove automatic transmission with hydraulic torque converter 14 through motor 13, thereby drive wheels 15 also can realize that driving engine 11 drives motor 13 through control, gives electrokinetic cell 16 chargings.These structural requirement driving engine 11 cabin axial dimensions are bigger, and difficult arrangement has reduced the degree of utilization of inner space simultaneously.
Another kind of existing hybrid electric drive system is as shown in Figure 2, adopts the combination of driving engine 21, ISG (Integrated Starter and Generator, integrated startup and generating) motor 22, sun and planet gear 23, motor 24.ISG motor 22 start the engines 21 in this kind structure realize wheel 25 direct drives through sun and planet gear 23, or 24 pairs of electrokinetic cells 26 of drive motor charge.Motor 24 realizes wheel 25 direct drives through sun and planet gear 23, or the Conversion of energy of braking feedback be electrical energy transfer in electrokinetic cell 26, realize charging.Can realize driving engine 21 and 24 while of motor drive wheels 25 through sun and planet gear 23, realize combination drive.The manufacture process requirement precision of the sun and planet gear 23 of this structure is high, and control is difficulty comparatively, and cost is high.
Also have a kind of hybrid electric drive system as shown in Figure 3, adopt the unitized construction of automatic transmission with hydraulic torque converter 32 with the motor 33 of driving engine 31, band double-clutch.Clutch control driving engine 31 in this kind structure, an other clutch control motor 33, driving engine 31 can pass through automatic transmission with hydraulic torque converter 32 independent direct drive wheels 34.Motor 33 can pass through automatic transmission with hydraulic torque converter 32 independent direct drive wheels 34, and glancing impact can be realized charging to the transfer of energy of feedback through motor 33 in electrokinetic cell 35.High, control realization difficulty that the automatic transmission with hydraulic torque converter 32 of this structural requirement band double-clutch, precision of manufacturing process require, the dynamic assembly entire arrangement is bigger, and is bigger to the cabin space requirement of driving engine 31.
Summary of the invention
The objective of the invention is the defective to prior art, provide a kind of simple in structure, practice thrift axially, the hybrid electric drive system of horizontal space, lifting tractive performance.
Particularly; A kind of hybrid electric drive system that the embodiment of the invention proposes; Be arranged in the car body of automobile, it is characterized in that, said hybrid electric drive system comprises driving engine, first automatic transmission with hydraulic torque converter, electrokinetic cell, reinforcement start stop apparatus, motor and self-acting clutch.To link to each other with the wheel front axle of said automobile to drive said wheel front axle, an end of said reinforcement start stop apparatus links to each other with said driving engine wherein said driving engine through said first automatic transmission with hydraulic torque converter, and its other end links to each other with said electrokinetic cell.Said motor connects said electrokinetic cell, and said motor through self-acting clutch linking to each other with the wheel rear axle of said automobile, thereby drive said wheel rear axle.
Preferably, said reinforcement start stop apparatus is that belt transmits startup/generating integrated motor, integrated startup/generating integrated motor or lucky intelligent start stop system.
Preferably, said hybrid electric drive system further comprises battery management system, and it links to each other to manage said electrokinetic cell with said electrokinetic cell.
Preferably, said hybrid electric drive system further comprises electric machine controller, and it links to each other to control said motor with said motor.
Preferably, said self-acting clutch is integrated on the said motor.
Preferably, said motor is a wheel motor.
Preferably, said motor is the parallel-axis type integrate motor.And said hybrid electric drive system further comprises second automatic transmission with hydraulic torque converter, and wherein said motor links to each other to drive said wheel rear axle with said wheel rear axle through second automatic transmission with hydraulic torque converter.
The embodiment of the invention also provides a kind of hybrid power driving method; It is suitable in the above-mentioned hybrid electric drive system; Wherein said hybrid power driving method comprises: when said automobile starting and when being in lower-speed state; Start said motor, with through the said wheel rear axle of said motor independent drive, thereby get into electric-only mode; Reach the access rotating speed of said driving engine setting when the rotating speed of said automobile; And when the capacity status of said electrokinetic cell does not reach minimum limit value position; The said driving engine of said reinforcement start stop apparatus quick operated start; This moment, said driving engine and said motor drove said wheel front axle and said wheel rear axle respectively, thereby got into the associating drive pattern; And when the rotating speed of said automobile reaches the disengaging driving rotating speed of said motor; The separated attitude of said self-acting clutch is not so that said motor drives said wheel rear axle; The said wheel front axle of said driving engine independent drive this moment, thus the engine drive pattern got into.
Preferably; Said hybrid power driving method further comprises: when the rotating speed of said automobile does not reach the disengaging driving rotating speed of said motor setting; Said self-acting clutch is closure state; And when the capacity status of said electrokinetic cell reaches minimum limit value position; The said wheel front axle of said driving engine independent drive, and said driving engine charges to said electrokinetic cell through said reinforcement start stop apparatus, and/or said motor in the transfer of energy of feedback to the said electrokinetic cell to charge.
Hybrid electric drive system of the present invention and hybrid power driving method adopt reinforcement start stop apparatus at high speed to open, stop paying out motivation, and arrangement convenience has been saved axial, horizontal space, helps the car load axle and heavily distributes; Select two-wheel drive or four wheel drive according to the actual condition demand, work allocation and car load control through to each parts make driving engine with optimum working curve work, have reduced car load oil consumption and discharging; The electric energy of working power battery drives as much as possible simultaneously, has prolonged the range that goes, and through control policy electrokinetic cell is protected, and improves the service life of electrokinetic cell.
Description of drawings
Fig. 1 is the structural representation that a kind of hybrid power of prior art drives.
Fig. 2 is the structural representation that the another kind of hybrid power of prior art drives.
Fig. 3 is the structural representation that another hybrid power of prior art drives.
Fig. 4 is the structural representation of a kind of hybrid electric drive system of embodiment of the invention proposition.
Fig. 5 is the energy flow diagram of hybrid electric drive system under electric-only mode shown in Figure 4.
Fig. 6 is the energy flow diagram of hybrid electric drive system under the associating drive pattern shown in Figure 4.
Fig. 7 is the energy flow diagram of hybrid electric drive system under the engine drive pattern shown in Figure 4.
Fig. 8 is hybrid electric drive system another energy flow diagram under the engine drive pattern shown in Figure 4.
Fig. 9 is the structural representation of the hybrid electric drive system that discloses of another embodiment of the present invention.
Figure 10 is the structural representation of the hybrid electric drive system that discloses of further embodiment of this invention.
The specific embodiment
See also Fig. 4, it is for the structural representation of the hybrid electric drive system that one embodiment of the invention disclosed.As shown in Figure 4; Hybrid electric drive system 400 is arranged in the car body of automobile; This system 400 comprise driving engine 410, automatic transmission with hydraulic torque converter 420, electrokinetic cell 430, battery management system 431 (battery management system, BMS), strengthen start stop apparatus 440, motor 450, electric machine controller 451, self-acting clutch 460.
Wherein, Strengthen start stop apparatus 440 and can transmit startup/generating integrated motor (Belt-driven Starter/Generator), integrated startup/generating integrated motor (Integrated Start/Generator) or lucky intelligent start stop system (Geely Intelligent Stop-Go System) for belt; The one of which end links to each other with driving engine 410, and its other end links to each other with electrokinetic cell 430.In the present embodiment, strengthen start stop apparatus 440 and adopt belt-driving startup/generating integrated motor BSG.
Linking to each other with drive wheels front axle 471 with the wheel front axle 471 of automobile, and motor 450 passes through self-acting clutch 460 to link to each other with drive wheels rear axle 472 with the wheel rear axle 472 of automobile through automatic transmission with hydraulic torque converter 420 for driving engine 410.Self-acting clutch 460 can be integrated on the motor 450.In addition, it will be appreciated by persons skilled in the art that on the motor 450 further to be integrated with speed-changing mechanism, to regulate the rotating speed of wheel rear axle 472.
Battery management system 431 links to each other with dynamics of management battery 430 with electrokinetic cell 430, and electric machine controller 451 links to each other with motor 450 with control motor 450.
Hybrid electric drive system 400 of the present invention is according to the operating characteristic of each parts under different operating modes, and the utilization control policy distributes each parts mode of operation accurately.The operational mode that can realize comprises: electric-only mode; The associating drive pattern; The engine drive pattern.
Electric-only mode: Fig. 5 is the energy flow diagram of hybrid electric drive system under electric-only mode shown in Figure 4.As shown in Figure 5, for oil consumption and the discharging that reduces driving engine 410, make driving engine 410 be in the work of optimized working zone territory, so when car load startup and lower-speed state, can only rely on motor 450 to start and driving always.When car load starts; The car load moving velocity does not reach motor 5 to be set under the disengaging driving speed conditions, and the SOC of electrokinetic cell 430 (state of capacity, capacity status) is higher than when setting minimum limit value position; Self-acting clutch 460 is closure state; This state is motor 450 independent drive wheel rear axles 472, realizes electric-only mode, and energy flows shown in the dotted line among Fig. 5.
Associating drive pattern: Fig. 6 is the energy flow diagram of hybrid electric drive system under the associating drive pattern shown in Figure 4.As shown in Figure 6; When the car load rotating speed reaches the access rotating speed that driving engine 410 is set, and the SOC of electrokinetic cell 430 strengthens start stop apparatus 440 quick operated start driving engines 410 when also not reaching minimum limit value position; And reach optimum working curve district; This moment driving engine 410 with motor 450 drive wheels front axles 471 and wheel rear axles 472 respectively, driving engine 410 is in the work of optimum working curve district always, energy flows shown in the dotted line among Fig. 6.
Engine drive pattern: Fig. 7 is the energy flow diagram of hybrid electric drive system under the engine drive pattern shown in Figure 4.As shown in Figure 7; When the car load rotating speed reached the disengaging driving rotating speed of motor 450 settings, self-acting clutch 460 separated attitudes were not when the SOC of electrokinetic cell 430 also reaches minimum limit value position; Motor 450 is drive wheels rear axle 472 not; Driving engine 410 independent drive wheel front axles 471, this moment, driving engine 410 can make car load reach maximum speed, and energy flows shown in the dotted line among Fig. 7.
Fig. 8 is hybrid electric drive system another energy flow diagram under the engine drive pattern shown in Figure 4.As shown in Figure 8; When the car load rotating speed does not reach the disengaging driving rotating speed of motor 450 settings, and self-acting clutch 460 is closure state, when the SOC of electrokinetic cell 430 reaches minimum limit value position; Driving engine 410 independent drive wheel front axles 471; Driving engine 410 charges through strengthening 440 pairs of electrokinetic cells 430 of start stop apparatus, and perhaps motor 450 is realized charging to the transfer of energy of feedback in electrokinetic cell 430, and energy flows shown in the dotted line among Fig. 8.
Hybrid electric drive system 400 of the present invention adopts reinforcement start stop apparatus 440 at high speeds to open, stop paying out motivation 410, and arrangement convenience has been saved axial, horizontal space, helps the car load axle and heavily distributes; Select two-wheel drive or four wheel drive according to the actual condition demand, work allocation and car load control through to each parts make driving engine 410 with optimum working curve work, have reduced car load oil consumption and discharging; The electric energy of working power battery 430 drives as much as possible simultaneously, has prolonged the range that goes, and through control policy electrokinetic cell 430 is protected, and improves the service life of electrokinetic cell 430.
See also Fig. 9, it is for the structural representation of the hybrid electric drive system that another embodiment of the present invention disclosed.As shown in Figure 9, the hybrid electric drive system 500 shown in the present embodiment is similar with hybrid electric drive system 400 shown in Figure 4, and its difference is that motor 550 adopts wheel motor, and it links to each other with the wheel rear axle through self-acting clutch 560.
See also Figure 10, it is for the structural representation of the hybrid electric drive system that further embodiment of this invention disclosed.Shown in figure 10; Hybrid electric drive system 600 shown in the present embodiment is similar with hybrid electric drive system 400 shown in Figure 4; Its difference is; Motor 650 adopts the parallel-axis type integrate motors, and the hybrid electric drive system 600 of present embodiment further comprises another automatic transmission with hydraulic torque converter 680, and wherein parallel-axis type integrate motor 650 is through automatic transmission with hydraulic torque converter 680 and link to each other with the drive wheels rear axle with the wheel rear axle.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.

Claims (10)

1.一种混合动力驱动系统(400)，设置在汽车的车体中，其特征在于，所述混合动力驱动系统包括： 1. A hybrid drive system (400), which is arranged in the body of an automobile, is characterized in that the hybrid drive system comprises: 发动机(410)； engine (410); 第一自动变速器(420)，其中所述发动机通过所述第一自动变速器以与所述汽车的车轮前轴(471)相连，从而驱动所述车轮前轴； a first automatic transmission (420), wherein the engine is connected to the wheel front axle (471) of the automobile through the first automatic transmission, thereby driving the wheel front axle; 动力电池(430)； Power battery (430); 强化启停装置(440)，其一端与所述发动机相连，而其另一端与所述动力电池相连； An enhanced start-stop device (440), one end of which is connected to the engine, and the other end of which is connected to the power battery; 电机(450)，连接所述动力电池；以及 A motor (450), connected to the power battery; and 自动离合器(460)，其中所述电机通过自动离合器以与所述汽车的车轮后轴(472)相连，从而驱动所述车轮后轴。 An automatic clutch (460), wherein the motor is connected to the wheel rear axle (472) of the automobile through the automatic clutch, thereby driving the wheel rear axle. 2.如权利要求1所述的混合动力驱动系统，其特征在于，所述强化启停装置为皮带传送启动/发电一体化电机、集成启动/发电一体化电机或者吉利智能启停系统。 2. The hybrid drive system according to claim 1, wherein the enhanced start-stop device is a belt-transmitted start/power generation integrated motor, an integrated start/power generation integrated motor, or Geely's smart start-stop system. 3.如权利要求1所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统进一步包括： 3. The hybrid drive system of claim 1, further comprising: 电池管理系统(431)，与所述动力电池相连以管理所述动力电池。 A battery management system (431), connected to the power battery to manage the power battery. 4.如权利要求1所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统进一步包括： 4. The hybrid drive system of claim 1, further comprising: 电机控制器(451)，与所述电机相连以控制所述电机。 A motor controller (451), connected to the motor to control the motor. 5.如权利要求1所述的混合动力驱动系统，其特征在于，所述自动离合器(460)集成在所述电机(450)上。 5. The hybrid drive system according to claim 1, characterized in that, the automatic clutch (460) is integrated on the electric machine (450). 6.如权利要求1所述的混合动力驱动系统，其特征在于，所述电机(550)为轮边电机。 6. The hybrid drive system according to claim 1, characterized in that, the motor (550) is a wheel-side motor. 7.如权利要求1所述的混合动力驱动系统，其特征在于，所述电机(650)为平行轴式集成电机。 7. The hybrid drive system according to claim 1, characterized in that, the motor (650) is a parallel shaft integrated motor. 8.如权利要求7所述的混合动力驱动系统，其特征在于，所述混合动力驱动系统进一步包括： 8. The hybrid drive system of claim 7, further comprising: 第二自动变速器(680)，其中所述电机通过第二自动变速器以与所述车轮后轴(672)相连，从而驱动所述车轮后轴。 A second automatic transmission (680), wherein the motor is connected to the wheel rear axle (672) through the second automatic transmission, so as to drive the wheel rear axle. 9.一种混合动力驱动方法，其适用于如权利要求1所述的混合动力驱动系统中，其特征在于，所述混合动力驱动方法包括： 9. A hybrid driving method, which is applicable to the hybrid driving system according to claim 1, characterized in that, the hybrid driving method comprises: 当所述汽车启动及处于低速状态时，启动所述电机(450)，以通过所述电机单独驱动所述车轮后轴(472)，从而进入纯电动模式； When the vehicle starts and is in a low-speed state, start the motor (450), so as to drive the wheel rear axle (472) independently through the motor, thereby entering a pure electric mode; 当所述汽车的转速达到所述发动机(410)设定的接入转速，且所述动力电池(430)的容量状态未达到最低限值位置时，所述强化启停装置(440)快速启动所述发动机，此时所述发动机和所述电机分别驱动所述车轮前轴(471)和所述车轮后轴(472)，从而进入联合驱动模式；以及 When the rotation speed of the vehicle reaches the access speed set by the engine (410), and the capacity state of the power battery (430) does not reach the minimum limit position, the enhanced start-stop device (440) starts quickly The engine, at this time, the engine and the motor respectively drive the wheel front axle (471) and the wheel rear axle (472), thereby entering a joint drive mode; and 当所述汽车的转速达到所述电机(450)的脱离驱动转速时，所述自动离合器(460)呈分离状态以使所述电机不驱动所述车轮后轴(472)，此时所述发动机单独驱动所述车轮前轴(471)，从而进入发动机驱动模式。 When the speed of the automobile reaches the disengagement driving speed of the motor (450), the automatic clutch (460) is disengaged so that the motor does not drive the wheel rear axle (472), and the engine The wheel front axles (471) are driven individually, thereby entering the engine drive mode. 10.如权利要求9所述的混合动力驱动方法，其特征在于，所述混合动力驱动方法进一步包括： 10. The hybrid driving method according to claim 9, characterized in that, the hybrid driving method further comprises: 当所述汽车的转速未达到所述电机(450)设定的脱离驱动转速时，所述自动离合器(460)呈闭合状态，且在所述动力电池(430)的容量状态达到最低限值位置时，所述发动机(410)单独驱动所述车轮前轴(471)，且所述发动机通过所述强化启停装置(440)对所述动力电池进行充电，和/或所述电机(450)把反馈的能量传递至所述动力电池中以进行充电。 When the rotation speed of the automobile does not reach the disengagement driving rotation speed set by the motor (450), the automatic clutch (460) is in a closed state, and the capacity state of the power battery (430) reaches the minimum limit position , the engine (410) alone drives the wheel front axle (471), and the engine charges the power battery through the enhanced start-stop device (440), and/or the motor (450) Transfer the feedback energy to the power battery for charging.
CN2012100561543A 2012-03-06 2012-03-06 Hybrid driving system and corresponding hybrid driving method Pending CN102582411A (en)

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CN104061256A (en) * 2014-06-17 2014-09-24 武汉理工通宇新源动力有限公司 Automatic clutch actuator for HEV (Hybrid Electrical Vehicle) and control method of automatic clutch actuator
CN104097500A (en) * 2013-04-03 2014-10-15 F·波尔希名誉工学博士公司 Hybrid vehicle with internal combustion engine and electric machine
CN104520160A (en) * 2012-08-02 2015-04-15 麦格纳动力系有限两合公司 Method for operating a powertrain
CN106347358A (en) * 2016-10-11 2017-01-25 浙江吉利新能源商用车有限公司 Power source for electric vehicle and power source switching control method
CN106470861A (en) * 2014-07-04 2017-03-01 标致·雪铁龙汽车公司 Control for motor vehicle driven by mixed power mixes the control method of power-driven system
CN106541940A (en) * 2016-10-11 2017-03-29 浙江吉利新能源商用车有限公司 A kind of power source and power source selection method for electric vehicle
CN106808995A (en) * 2015-12-01 2017-06-09 舍弗勒技术股份两合公司 Power assembly of hybrid vehicle and control method and control device thereof
CN115214336A (en) * 2022-02-22 2022-10-21 一汽解放汽车有限公司 Vehicle power system, power control method and vehicle

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Application publication date: 20120718