CN105172889A - Vibration energy recycling suspension system with four-wheel steering function - Google Patents

Vibration energy recycling suspension system with four-wheel steering function Download PDF

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Publication number
CN105172889A
CN105172889A CN201510605905.6A CN201510605905A CN105172889A CN 105172889 A CN105172889 A CN 105172889A CN 201510605905 A CN201510605905 A CN 201510605905A CN 105172889 A CN105172889 A CN 105172889A
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China
Prior art keywords
suspension
steering
transmission shaft
power
vibration energy
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CN201510605905.6A
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Chinese (zh)
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CN105172889B (en
Inventor
邹忠月
许广灿
陈健
徐俊
曹秉刚
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河南速达电动汽车科技有限公司
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Publication of CN105172889A publication Critical patent/CN105172889A/en
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Publication of CN105172889B publication Critical patent/CN105172889B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/08Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine

Abstract

The invention discloses a vibration energy recycling suspension system with a four-wheel steering function. The vibration energy recycling suspension system comprises a rubber buffer block, a lead screw nut, a damping spring, a ball screw, a lead screw power box, a lower bridge arm, a motor, a wheel hub, a steering rod, a steering power box, a transmission shaft, a power mounting base, a spring upper supporting base, a spring lower supporting base, a spherical connector and a gearbox. The vibration energy recycling suspension system can carry out conversion among different modes of a suspension system according to a vehicle travelling condition and requirements of a driver, so that not only can vibration energy recycling be realized, but also the four-wheel steering function of the vehicle can be completed. The four-wheel steering function is additionally arranged on the vibration energy recycling suspension frame, so that functional complementation of the four-wheel steering function and the vibration energy recycling suspension frame is realized, complex level of the device is simplified, and mechanism redundancy is reduced.

Description

A kind of vibration energy regeneration suspension system with four-wheel steering function

Technical field

The present invention relates to new-energy automobile field, particularly relate to a kind of vibration energy regeneration suspension system with four-wheel steering function.

Background technology

Vehicle in the process of moving, due to pavement roughness, causes suspension to produce vibration.Usually to improve travelling comfort for main purpose, the passive suspension that vehicle adopts damping spring and shock absorber to form carrys out buffering vibration.These vibrational energies change into thermal dissipation in air, cause the waste of the energy.Existing Active control suspension, although can improve travelling comfort and vehicle stability to a certain extent, rely on high energy consumption, control complicated system and complete.

Modern vehicle many employings front-wheel steering, the traveling that substantially can meet automobile turns to requirement.But for parking, the occasion high to turning efficiency requirement such as turning, conventional steering can not meet more greatly the demand of people due to Turning radius.The four-wheel steering technology of automobile can reduce turn radius, ensure that driving safety.Existing four-wheel steering system, how parking, switch when turning and use, because fringe cost is high, control the reasons such as complicated, degree of utilization is low, be not used widely.

In today of energy growing tension, avoid the waste of energy and be problem demanding prompt solution to the efficiency utilization of the energy.Vibration energy regeneration suspension can reclaim energy during Vehicular vibration, and can realize active and the Passive Control of suspension, has good development prospect.Existing vibration energy regeneration suspension, when road surface normally travels, energy recovery efficiency is higher, and parking, low speed when turning energy recovery efficiency low.Thus cause the problems such as suspension system overall utilization rate is low, control is complicated, energy recovery efficiency is low.

Summary of the invention

For existing suspension and steering technique problem, the invention provides the vibration energy regeneration suspension system of the band four-wheel steering function that a kind of structure is simply novel, energy recovery efficiency is high.

The technical solution used in the present invention is: a kind of vibration energy regeneration system with four-wheel steering function, comprises damping rubber block, feed screw nut, damper spring, ball-screw, leading screw headstock, lower brachium pontis, motor, wheel nave, deflecting bar, steering power case, transmission shaft, power mounting seat, upper bracket of the spring, spring lower support, ball link and gear case; Described leading screw headstock, steering power case and gear case are installed in parallel on lower brachium pontis by power mounting seat, and leading screw headstock is connected by transmission shaft with gear case, and gear case is connected with steering power case by transmission shaft; Described ball-screw is arranged on leading screw headstock, and damping spring is fixed on ball-screw by the upper bracket of the spring at two ends and spring lower support, and is provided with feed screw nut and damping rubber block on the top of ball-screw; Described gear case is provided with motor, and steering power case is connected with wheel hub with ball link by deflecting bar.

Further, described suspension system also comprises control system, angular speed of wheel sensor, suspension velocity sensor and AD converter.

Further, described suspension system can work under Three models:

Pattern one is four-wheel steering pattern, and suspension does not reclaim vibrational energy, is passive suspension;

Pattern two is conventional steering pattern, and suspension reclaims vibrational energy, and not carrying out ACTIVE CONTROL, is passive suspension;

Pattern three is conventional steering pattern, and suspension recovery section vibrational energy also carries out ACTIVE CONTROL, is active suspension.

Further, in described pattern one, gear case and the engagement of steering power case transmission shaft, be separated with leading screw headstock transmission shaft, power is transferred to steering power case by transmission shaft by gearbox speed reduction by motor, and steering power case is by transmission of power to deflecting bar, and vehicle is according to the instruction of control system, regulate power output and the rotating speed of motor, carry out four-wheel steering.

Further, in described pattern two, gear case and the engagement of leading screw headstock transmission shaft, be separated with steering power case transmission shaft, when Vehicular vibration, suspension damper spring produces vibration, transform linear motion is rotary motion by ball-screw, by leading screw headstock transferring power, power is delivered to gear case through transmission shaft, and drive motor rotates.

Further, in described pattern, gear case and the engagement of leading screw headstock transmission shaft, be separated with steering power case transmission shaft, when Vehicular vibration, control system controls motor reversal moment, and suspension is had the initiative state of a control.

The beneficial effect that the present invention produces is: the present invention can carry out the conversion of suspension system different mode according to the demand of the travel conditions of vehicle and chaufeur, not only achieve the recovery of vibrational energy, can complete the four-wheel steering function of vehicle simultaneously.Four-wheel steering function is attached on vibration energy regeneration suspension, achieves having complementary functions of the two, simplify the complexity of device, reduce mechanism's redundancy.

Accompanying drawing explanation

Fig. 1 is the structural representation of suspension in the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described further.

A kind of vibration energy regeneration suspension system with four-wheel steering function.As shown in Figure 1, damping rubber block 1, feed screw nut 2, damper spring 3, ball-screw 4, leading screw headstock 5, lower brachium pontis 6, motor 7, wheel hub 8, deflecting bar 9, steering power case 10, transmission shaft 11, power mounting seat 12, upper bracket of the spring 13, spring lower support 14, ball link 15 and gear case 16 is comprised.

Damping rubber block 1 is fixed on leading screw end, causes damage for preventing during Vehicular vibration to leading screw end.Feed screw nut 2 is fastenedly connected by brachium pontis on bolt and vehicle.Damper spring 3 is installed fixing by upper bracket of the spring 13, spring lower support 14.Ball-screw 5 upper end and feed screw nut 2 coordinate to be installed, and lower end is connected with leading screw headstock 5 internal mechanical driving device.Leading screw headstock 5, gear case 16, steering power case 10 are fixed on headstock mount pad 12 by bolt.Headstock mount pad 12 and lower brachium pontis 6 are fastenedly connected.Motor 7 is by motor support base, and be fixed on gear case 16 with bolt, motor shaft is connected by coupler with gear case internal mechanical driving device.The output shaft of leading screw headstock 5, the output shaft of steering power case 10 adopt coupler to be connected with gear case internal mechanical driving device respectively.Deflecting bar 9 is through steering power case 10, and inside is connected with steering power case mechanical drive, and inside can complete the switching of conventional steering and four-wheel steering.Deflecting bar 9 one end is connected with wheel nave 8 by ball link 15, and the other end is connected with conventional steering device.Ball link 15 is fixedly mounted on wheel nave 8.The centre hole of wheel nave 8 is used for installing wheel dynamical axis.

Motor 7 is controlled by motor-drive circuit, and the vibrational energy that motor reclaims passes through energy recovering circuit, to charging on-vehicle battery.Wheel turning angle is by angular transducer, and through AD converter, by signal transmission to control system, control system is analyzed signal, process, and sends course changing control instruction.Suspension velocity sensor gathers suspension vibration speed signal, and by AD converter, by signal transmission to control system, control system is analyzed signal, process, and regulates motor 7 torque reaction.Control system controls motor-drive circuit, energy recovering circuit, completes four-wheel steering and the suspension active control function of vehicle.

The travel situations different according to vehicle, whole system can be operated in three kinds of different mode states.Pattern one state, turn to as four-wheel steering pattern, suspension does not reclaim vibrational energy, is passive suspension; Pattern two-state, turns to as conventional steering pattern, and suspension reclaims vibrational energy, and not carrying out ACTIVE CONTROL, is passive suspension; Pattern three condition, turns to as conventional steering pattern, and suspension recovery section vibrational energy also carries out ACTIVE CONTROL, is active suspension.

When vehicle carries out four-wheel steering, control system controls motor-drive circuit, drive motor 7.Motor 7 through gear case 16, transmission shaft 11, steering power case 10, by transmission of power to deflecting bar 9.Deflecting bar 9 is connected by ball link 15 with wheel nave 8, and band motor car wheel completes and turns to.Power mount pad 12 is bolted on lower brachium pontis 6, and the installation for leading screw headstock 5, gear case 16, steering power case 10 is fixed.Lower brachium pontis 6 is connected with vehicle bridge.Now, output shaft and the gear case 16 of leading screw headstock 5 belong to off-state, and suspension is passive suspension, and system works is in pattern one state.

Vehicle is followed road surface and is produced in up-down vibration process, and in suspension system, damper spring 3 is for Vehicle damper, and damping rubber block 1 is fixed on leading screw top, follows leading screw perpendicular movement, for preventing vehicle, large impact occurs and produces damage to ball-screw top.Feed screw nut 2, in Vehicular vibration process, coordinates ball-screw 4 and leading screw to produce linear relative movement, and transform linear motion is become the rotary motion of leading screw.Rotary motion is passed to leading screw headstock 5.The power transmitted by leading screw inputs to leading screw headstock 5, and leading screw headstock completes the conversion of motion, and by transmission of power to output shaft, complete motion conversion by gear case 16, by transmission of power to motor 7, drive motor 7 generates electricity.The electric energy that motor 7 produces passes through energy recovering circuit, to charging on-vehicle battery.Complete energy recovery process.In this process, control system does not regulate the torque reaction of motor, and suspension system is operated in pattern two-state.

By control system, energy recovering circuit is controlled, can the size of regulation output power, and then the torque reaction regulating motor 7 to produce.Torque reaction is by gear case 16, transmission shaft 11, leading screw headstock 5, and the axial force between ball-screw 4 and feed screw nut 2 can be regulated in model-following control instruction, and complete the ACTIVE CONTROL of suspension, adjustable suspension system works is at pattern three condition.

Under Three models state, suspension system and steering swivel system form the relation had complementary functions.When vehicle carries out low speed turning and parks, suspension vibration is not obvious, requires low to travelling comfort, and require higher to turning efficiency, system works is in pattern one state.When vehicle runs at a constant speed, suspension is in normal working, and vibration is comparatively large, and energy recovery efficiency is high.In driving procedure, require higher to travelling comfort, suspension selectively operating is at active control state.In normal straight driving process, not high to steering system demand, conventional steering can meet the demands.Under system can select the pattern that is operated in two and three condition.Visible, three kinds of mode of operations meet most vehicle driving-cycle, and under often kind of mode state, the function of suspension system and steering swivel system complements each other, and avoids system authority redundancy.

Mode state conversion of the present invention is completed jointly by control system and mechanical drive, vibration energy regeneration mechanism can be utilized easily to complete four-wheel steering function, farthest realize the recovery of vibrational energy simultaneously.

Claims (6)

1. the vibration energy regeneration system with four-wheel steering function, is characterized in that: comprise damping rubber block, feed screw nut, damper spring, ball-screw, leading screw headstock, lower brachium pontis, motor, wheel nave, deflecting bar, steering power case, transmission shaft, power mounting seat, upper bracket of the spring, spring lower support, ball link and gear case; Described leading screw headstock, steering power case and gear case are installed in parallel on lower brachium pontis by power mounting seat, and leading screw headstock is connected by transmission shaft with gear case, and gear case is connected with steering power case by transmission shaft; Described ball-screw is arranged on leading screw headstock, and damping spring is fixed on ball-screw by the upper bracket of the spring at two ends and spring lower support, and is provided with feed screw nut and damping rubber block on the top of ball-screw; Described gear case is provided with motor, and steering power case is connected with wheel hub with ball link by deflecting bar.
2. a kind of vibration energy regeneration system with four-wheel steering function according to claim 1, is characterized in that: described suspension system also comprises control system, angular speed of wheel sensor, suspension velocity sensor and AD converter.
3. a kind of vibration energy regeneration system with four-wheel steering function according to claim 1, is characterized in that: described suspension system can work under Three models:
Pattern one is four-wheel steering pattern, and suspension does not reclaim vibrational energy, is passive suspension;
Pattern two is conventional steering pattern, and suspension reclaims vibrational energy, and not carrying out ACTIVE CONTROL, is passive suspension;
Pattern three is conventional steering pattern, and suspension recovery section vibrational energy also carries out ACTIVE CONTROL, is active suspension.
4. a kind of vibration energy regeneration system with four-wheel steering function according to claim 3, it is characterized in that: in described pattern one, gear case and the engagement of steering power case transmission shaft, be separated with leading screw headstock transmission shaft, power is transferred to steering power case by transmission shaft by gearbox speed reduction by motor, and steering power case is by transmission of power to deflecting bar, and vehicle is according to the instruction of control system, regulate power output and the rotating speed of motor, carry out four-wheel steering.
5. a kind of vibration energy regeneration system with four-wheel steering function according to claim 3, it is characterized in that: in described pattern two, gear case and the engagement of leading screw headstock transmission shaft, be separated with steering power case transmission shaft, when Vehicular vibration, suspension damper spring produces vibration, transform linear motion is rotary motion by ball-screw, by leading screw headstock transferring power, power is delivered to gear case through transmission shaft, and drive motor rotates.
6. a kind of vibration energy regeneration system with four-wheel steering function according to claim 3, it is characterized in that: in described pattern three kinds, gear case and the engagement of leading screw headstock transmission shaft, be separated with steering power case transmission shaft, when Vehicular vibration, control system controls motor reversal moment, and suspension is had the initiative state of a control.
CN201510605905.6A 2015-09-22 2015-09-22 A kind of vibration energy regeneration suspension system with four-wheel steering function CN105172889B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108482163A (en) * 2018-04-23 2018-09-04 台州鼎拓工业设计有限公司 With the new-energy automobile for turning to inertia energy recovery system
CN108799030A (en) * 2018-05-25 2018-11-13 北京航空航天大学 Electromagnetic type vibration damping and energy-absorbing power generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100072760A1 (en) * 2008-04-17 2010-03-25 Levant Power Corporation Regenerative shock absorber system
CN103470673A (en) * 2013-09-24 2013-12-25 吉林大学 Pump type damper and active cross-linked energy-regenerative suspension system
CN204222568U (en) * 2014-11-03 2015-03-25 吉林大学 A kind of single oil cylinder suspension of In-wheel motor driving battery-driven car
CN104802907A (en) * 2015-05-07 2015-07-29 马洪斌 Independent suspension assembly
CN204978142U (en) * 2015-09-22 2016-01-20 河南速达电动汽车科技有限公司 Vibration energy who takes four wheel steering function retrieves suspension

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100072760A1 (en) * 2008-04-17 2010-03-25 Levant Power Corporation Regenerative shock absorber system
CN103470673A (en) * 2013-09-24 2013-12-25 吉林大学 Pump type damper and active cross-linked energy-regenerative suspension system
CN204222568U (en) * 2014-11-03 2015-03-25 吉林大学 A kind of single oil cylinder suspension of In-wheel motor driving battery-driven car
CN104802907A (en) * 2015-05-07 2015-07-29 马洪斌 Independent suspension assembly
CN204978142U (en) * 2015-09-22 2016-01-20 河南速达电动汽车科技有限公司 Vibration energy who takes four wheel steering function retrieves suspension

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108482163A (en) * 2018-04-23 2018-09-04 台州鼎拓工业设计有限公司 With the new-energy automobile for turning to inertia energy recovery system
CN108799030A (en) * 2018-05-25 2018-11-13 北京航空航天大学 Electromagnetic type vibration damping and energy-absorbing power generator

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