CN100372697C - Electrically controlled suspension frame for automobile - Google Patents
Electrically controlled suspension frame for automobile Download PDFInfo
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- CN100372697C CN100372697C CNB2004100258607A CN200410025860A CN100372697C CN 100372697 C CN100372697 C CN 100372697C CN B2004100258607 A CNB2004100258607 A CN B2004100258607A CN 200410025860 A CN200410025860 A CN 200410025860A CN 100372697 C CN100372697 C CN 100372697C
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- vehicle
- rotating shaft
- sleeve pipe
- belt pulley
- sleeved
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Abstract
The present invention relates to the field of a vehicle, particularly to an electrically controlled suspension fork of a vehicle. In order to overcome the defects of complicated structure and high cost in the prior art, the present invention has the technical scheme that first, a hydraulic cylinder is additionally arranged on a mechanical damper, and the damper is used as a piston rod of the hydraulic cylinder; second, a pulse width regulation type digital electromagnetic valve is used as an electronic controller, and a plurality of sensors are arranged on a vehicle body; third, an electromagnetic clutch is used for realizing the control of the movement of a medium pressure pump. Because the present invention adopts the technical measures, the change of the stroke height of the hydraulic cylinder can be adaptable to complicated road conditions, and the regulating capability for the height of the vehicle body is greatly improved. Besides, no matter how the loading of the vehicle is changed, a certain running level can be maintained, and the geometric relationship of the suspension fork of the vehicle can be constant. When the vehicle is turned, started and accelerated, the running performance is good, and the safety, the comfort and the cross-country property of the vehicle are improved. Besides, the present invention has the characteristics of simple structure and low cost.
Description
(1) technical field:
The present invention relates to automotive field, is a kind of automobile electrically-controlled suspension.
(2) background technology:
The shock mitigation system of the present traditional car bumpers that adopt mainly are made up of elastic element, bumper, guiding mechanism more, because the overall characteristic of elastic element, bumper, the rideability of automobile and the performance of operation have been influenced, make driving comfort and operational stability decide rigid spring and decide to satisfy simultaneously in the suspension of damping shock absorption device traditional, it is compromise to guarantee that automobile is issued to best performance in a certain specific road and velocity conditions, can only face the application force of vehicle body passively with bearing, and can not control these application forces by actv..Therefore in order to overcome the restriction of traditional shock absorber to its performance, the electronics bumper has compensated the above deficiency of traditional shock absorber.The car of developed countries has all adopted Electronic control suspension (EDC) system at present, to satisfy the bumper demand of car.
Electronic control suspension (EDC) system comprises the testing circuit of electronic control package, actuating unit and electronic controlled suspension.
Electronic control package: be made up of the driving circuit of micro controller system and sensor electrical source circuit, actr and supervisory circuit etc., its radical function is inner used power supply of electrical controller and various probe power amplification sensor signal to be provided, to calculate incoming signal, to be driven actuating unit, fault detection by constant voltage power suspply.
Actuating unit: the actr, air bellow control cock, the hydro-pneumatic spring pressure-gradient control valve that comprise the damping force of vibration damper conversion are formed.The actr of damping force of vibration damper conversion is by rotating oscillation damping device control stalk, change the dumping force of bumper: the air bellow control cock is used to control bodywork height, when magnet coil is switched on, under the effect of electromagnetic force, core bar promotes plunger and moves, close air flue, form the ON/OFF action; The hydro-pneumatic spring apportioning valve is a kind of hydro-pneumatic spring pressure-gradient control valve, and during energising, magnet coil produces the electromagnetic force that is proportional to electric current, promotes valve rod and moves, and when valve rod thrust output voltage equated, valve rod stopped to move, to produce the oil pressure that is directly proportional with size of current.
The complex structure of this Electronic control suspension (EDC) system, the productive costs height.
(3) summary of the invention:
For avoiding the influence of traditional automobile absorber to the rideability and the operating characteristic of automobile, overcome car electronic controlled suspension (EDC) system architecture complexity, deficiency that cost is high, the present invention proposes a kind of simple in structure, strong operability, automobile electrically-controlled suspension that cost is low.
The present invention mainly comprises bumper, electronic control package, sensor and actuating unit, and its technical characterictic is: 1. installed hydraulic actuating cylinder additional on the mechanical damper of former car, realized control vehicle body rocking, rocking in all directions by this hydraulic actuating cylinder; 2. electronic control package mainly comprises microprocessor: electronic control package is accepted the signal that sensor sends, and delivers to digital solenoid valve after the pulsewidth modulation is amplified.The flow of the opening time modulated pressure oil by control electromagnetic valve, and then realize the motion of modulated pressure cylinder reaching the purpose that realizes Control of Automobile Far East state.Actuating unit comprises hydraulic reservoir and power transmission.
The present invention is that the mechanical damper to former car improves, and has installed hydraulic actuating cylinder additional.Realize control vehicle body waving, rocking by this hydraulic actuating cylinder in all directions; Electronic control package, sensor and actuating unit on automobile, have been increased, wherein: a plurality of sensors are housed, the status signal of vehicle movement are sent to control setup by sensor on vehicle body.Electronic control package mainly comprises microprocessor, the signal that the electronic control package receiving sensor sends, and after the pulsewidth modulation is amplified, deliver to digital solenoid valve.The flow of the opening time modulated pressure oil by control electromagnetic valve, and then realize the motion of modulated pressure cylinder.Actuating unit comprises hydraulic reservoir and power transmission.
Having installed hydraulic actuating cylinder additional on the bumper of former car, is to have utilized the piston rod of this bumper as hydraulic actuating cylinder.
Power transmission in the actuating unit is made up of the low pressure pump, medium lift pump, sleeve pipe and the magnetic clutch that are sleeved on the same axis.When energized, the magnetic field that magnetic clutch produced makes sucker and belt pulley adsorbed close, the rotating shaft campaign that belt pulley drives sucker and is attached thereto, and then drive the medium lift pump motion; Otherwise, when cut off the electricity supply, when magnetic field disappears, rotating shaft is static, is sleeved on the also stop motion of medium lift pump in the rotating shaft.
Among the present invention, sensor is transferred to control setup with the road conditions in the detected vehicle ', the speed of a motor vehicle, starting, the operating mode of quickening, turn to, braking, handle through microprocessor, and signal is transferred to digital solenoid valve, adjust the horizontal performance of suspension accurately and timely by actuating unit.
Because the present invention has taked abovementioned technology, make the variation of hydraulic cylinder travel height can adapt to complicated road conditions, increased considerably the regulating power of bodywork height, and no matter how the loading of vehicle changes, all can keep certain level of travelling, guarantee that the geometric relationship of automotive suspension is constant.When automobile during at turning, starting and brish acceleration, train operation performance is preferably arranged, improve safety, traveling comfort and the cross-country traveling ability of vehicle, and had characteristics simple in structure, that cost is low.
(4) description of drawings
Accompanying drawing 1 is the functional block diagram of automobile electrically-controlled suspension:
Accompanying drawing 2 is structural representations of hydraulic actuating cylinder:
Accompanying drawing 3 is structural representations of power transmission.
In the accompanying drawing:
1, piston rod 2, cylinder cap 3, hydraulic actuating cylinder 4, seal ring 5, orienting sleeve
6, oil inlet 7, cylinder barrel 8, suspension ring 9, piston 10, guide holder
11, sucker 12, belt pulley 13, coil 14, low pressure pump 15, centre bearer
16, medium lift pump 17, rear bearing 18, bonnet 19, shell 20, rotating shaft
21, sleeve pipe 22, spline 23, circle cover step 24, packing ring 25, nut
(5) specific embodiment:
Present embodiment is that the mechanical damper to former car improves, and has installed hydraulic actuating cylinder additional, realizes control vehicle body waving, rocking in all directions by this hydraulic actuating cylinder; Electronic control package, sensor and actuating unit on automobile, have been increased, wherein: a plurality of sensors are housed, the status signal of vehicle movement are sent to control setup by sensor on vehicle body.Electronic control package mainly comprises microprocessor, the signal that the electronic control package receiving sensor sends, and after the pulsewidth modulation is amplified, deliver to digital solenoid valve.The flow of the opening time modulated pressure oil by control electromagnetic valve, and then realize the motion of modulated pressure cylinder.Actuating unit comprises hydraulic reservoir and power transmission.
Present embodiment is put in electronic control package in the operator's compartment, and is connected by signal wire (SW) between gauge panel, height sensor and the electromagnetic valve.Link to each other by oil pipe between electromagnetic valve and each hydraulic actuating cylinder.Also link to each other between power transmission and each oil cylinder by oil pipe.
Its specific implementation process is:
Bumper: be positioned at the wheel inside upper part.Present embodiment is to install hydraulic actuating cylinder 3 on mechanical damper additional, constitutes new controlled rising bumper.Hydraulic actuating cylinder 3 comprises cylinder barrel 7, cylinder cap 2, piston 9, piston rod 1, seal ring 4.Former car bumper is placed in the hydraulic actuating cylinder 3, piston rod 1 as controlled rising bumper, the bottom of the piston rod 1 in hydraulic cylinder is welded with disc piston 9, two grooves are arranged on the circumference of piston 9, the guide collar 5 that nylon is made is inlaid in the groove respectively with " 0 " RunddichtringO 4: the width of guide collar 5 is consistent with the width of this groove, external diameter and work cylinder barrel 7 internal diameters match, and play the guiding role; Seal ring 4 is adjacent to casing wall and prevents the hydraulic oil leakage under the elastic force effect.
Be welded with the suspension ring 8 that connect vehicle bridge outside the cylinder barrel bottom of hydraulic actuating cylinder 3, cylindrical place, cylinder barrel upper end has fine thread and cylinder cap 2 to match.The tube inwall of cylinder barrel opening part has a step, and section is that the guide holder 10 of T-shape is installed on it; The great circle external diameter of guide holder is contained on the step, and the external diameter of roundlet is identical in cylinder barrel 7 internal diameters, is contained in the cylinder barrel.
For preventing that the piston rod sponson from bringing foul in the hydraulic actuating cylinder into, make contaminated, the sealing part abrasion of fluid, put at T-shape dust ring is housed.One oil inlet 6 is arranged at work cylinder barrel bottom, and the inlet and outlet hole is arranged at work cylinder barrel top.
Electronic control package: mainly comprise microprocessor.The signal that the electronic control package receiving sensor sends, and after the pulsewidth modulation is amplified, deliver to digital solenoid valve.
Pulse-width signal be have constant frequency, different open-interval ratio is called pulse width signal continuous signal is modulated into pulse width signal.Amount as modulation is a flow, and then the flow in per sampling period is just corresponding with the flow at continuous signal place.
Digital solenoid valve: adopt the pulse width modulation type digital electromagnetic valve.Behind the impulse singla that the digital solenoid valve reception is sent by electronic control package, control the hydraulic fluid flow rate of each hydraulic actuating cylinder that is attached thereto with open-interval length, and then realize the motion of modulated pressure cylinder.
Actuating unit: comprise hydraulic reservoir and power transmission.Wherein: power transmission is made up of the low pressure pump 14, medium lift pump 16, sleeve pipe 21 and the magnetic clutch that are sleeved on the same axis.
In the present embodiment, magnetic clutch is selected Santana's air-conditioning magnetic clutch for use.
Rotating shaft 20 is "T"-shaped.Sleeve pipe 21 is the metal thin-wall cylinder, and its internal diameter is greater than the external diameter of rotating shaft 20.Shell 19 also is the metal thin-wall cylinder, one end has bonnet 18, the cylinder bottom of the other end processes with shell integral body, and the internal diameter opening identical with the external diameter of sleeve pipe 21 arranged on this bottom, outside face in this bottom is useful on the circle cover step 23 of fixed coil 13, and this circle cover is lifted the internal diameter of the external diameter on rank less than coil 13.Wired ring recess and spline 22 in the wheel hub of belt pulley 12.
During assembling, successively bearing seat 17, medium lift pump 16, centre bearer 15, sleeve pipe 21 and belt pulley 12, clutch sleeve are contained in the rotating shaft 20, at last bonnet 18 and shell are fixed.One end of sleeve pipe 21 is connected with centre bearer 15, and the other end embeds the spline 22 that is positioned at belt pulley hub; Low pressure pump 14 is sleeved on the sleeve pipe 21.Because the internal diameter of sleeve pipe 21 is greater than the external diameter of rotating shaft 20, so 20 of sleeve pipe 21 and rotating shafts are gapped.Coil 13 embeds the coil groove that is positioned at belt pulley 12, is sleeved on the circle cover step 23 that is positioned at shell 19 tops.When the power supply of closing coil 13, the magnetic field that coil 13 is produced makes power-transfer clutch sucker 11 and belt pulley 12 adsorbed close, rotating shaft 20 motions that belt pulley 12 drives power-transfer clutch suckers 11 and is attached thereto, and then drive medium lift pump 16 motions; Otherwise, after cutting off the electricity supply, magnetic field disappears, the rotating shaft stop motion, is sleeved on the also stop motion of medium lift pump 16 in the rotating shaft 20.
Because low pressure pump 14 is sleeved on the sleeve pipe 21, and sleeve pipe 21 1 ends are inlaid in the interior spline 22 of belt pulley, thus when pulley movements,, and drive sleeve pipe 21 by the connection of spline, and then driven low pressure pump 14 motions.
Hydraulic reservoir is made up of oiling machine, oil return pipe, oil suction pipe, oil filter, casing.On casing top one oil filling port is arranged, oiling machine is contained in the oil filling port, compresses with lid.Oil return pipe is installed in casing top, and oil suction pipe is installed in lower box, and oil filter is contained in oil suction pipe inflow point in the casing.
Sensor: the photo-electric height sensor is installed in respectively on driving engine two side body and boot in, when bodywork height changed, automatically controlled components and parts can be judged the overall height state by the signal that sensor is exported.
The electric signal that each sensor and master cock produce after the input interface circuit shaping is amplified, is sent in the microprocessor, exports each control signal respectively through microprocessor processes with after judging, drives relevant actr and telltale work.
Claims (3)
1. an automobile electrically-controlled suspension comprises bumper, electronic control package, sensor and actuating unit, it is characterized in that:
A. on mechanical damper, installed hydraulic actuating cylinder (3) additional;
B. actuating unit comprises hydraulic reservoir and power transmission;
C. power transmission is made up of the low pressure pump (14), medium lift pump (16), sleeve pipe (21) and the magnetic clutch (11) that are sleeved in the same rotating shaft (20);
D. the sleeve pipe of power transmission (21) is sleeved in the rotating shaft (20), and an end of described sleeve pipe is captiveed joint with belt pulley (12); Medium lift pump (16) and belt pulley (12) also are sleeved in the rotating shaft (20); Low pressure pump (14) is sleeved on the sleeve pipe (21);
E. gapped between sleeve pipe (21) and rotating shaft (20);
F. when energized, the magnetic field that magnetic clutch produced makes sucker and belt pulley adsorbed close, the rotating shaft campaign that belt pulley drives sucker and is attached thereto, and then drive the medium lift pump motion; Otherwise, when cut off the electricity supply, when magnetic field disappears, rotating shaft is static, is sleeved on the also stop motion of medium lift pump in the rotating shaft.
2. automobile electrically-controlled according to claim 1 suspension is characterized in that utilizing the piston rod (1) of the bumper of former car as hydraulic actuating cylinder (3); The lower end of the work cylinder barrel (7) of described hydraulic actuating cylinder is welded with suspension ring (8).
3. as automobile electrically-controlled suspension as described in the claim 3, it is characterized in that in the wheel hub of belt pulley (12) spline (22) being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100258607A CN100372697C (en) | 2004-02-12 | 2004-02-12 | Electrically controlled suspension frame for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100258607A CN100372697C (en) | 2004-02-12 | 2004-02-12 | Electrically controlled suspension frame for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1557645A CN1557645A (en) | 2004-12-29 |
| CN100372697C true CN100372697C (en) | 2008-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100258607A Expired - Fee Related CN100372697C (en) | 2004-02-12 | 2004-02-12 | Electrically controlled suspension frame for automobile |
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| Country | Link |
|---|---|
| CN (1) | CN100372697C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11338639B2 (en) | 2019-05-31 | 2022-05-24 | Tenneco Automotive Operating Company Inc. | Damper with solenoid in piston rod |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057377B (en) * | 2013-01-06 | 2015-07-15 | 黄飞灵 | Body stabilization system |
| US9217483B2 (en) * | 2013-02-28 | 2015-12-22 | Tenneco Automotive Operating Company Inc. | Valve switching controls for adjustable damper |
| CN104648073B (en) * | 2015-02-04 | 2016-10-05 | 福州大学 | A kind of variable suspension of electromagnetic type and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4826205A (en) * | 1987-06-12 | 1989-05-02 | Atsugi Motor Parts Company, Limited | Anti-squat control system for automotive suspension system |
| JPH0615287B2 (en) * | 1984-09-20 | 1994-03-02 | トキコ株式会社 | Suspension |
| JPH10297238A (en) * | 1996-12-13 | 1998-11-10 | Hyundai Motor Co Ltd | Variable suspension system |
| CN2509006Y (en) * | 2001-08-22 | 2002-09-04 | 薛敬宇 | Absorptive power type vehicle body attitude control apparatus |
| JP2003267023A (en) * | 2002-03-19 | 2003-09-25 | Kazuhiro Toida | Vibration damping running system for vehicle |
-
2004
- 2004-02-12 CN CNB2004100258607A patent/CN100372697C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615287B2 (en) * | 1984-09-20 | 1994-03-02 | トキコ株式会社 | Suspension |
| US4826205A (en) * | 1987-06-12 | 1989-05-02 | Atsugi Motor Parts Company, Limited | Anti-squat control system for automotive suspension system |
| JPH10297238A (en) * | 1996-12-13 | 1998-11-10 | Hyundai Motor Co Ltd | Variable suspension system |
| CN2509006Y (en) * | 2001-08-22 | 2002-09-04 | 薛敬宇 | Absorptive power type vehicle body attitude control apparatus |
| JP2003267023A (en) * | 2002-03-19 | 2003-09-25 | Kazuhiro Toida | Vibration damping running system for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11338639B2 (en) | 2019-05-31 | 2022-05-24 | Tenneco Automotive Operating Company Inc. | Damper with solenoid in piston rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1557645A (en) | 2004-12-29 |
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Granted publication date: 20080305 Termination date: 20170212 |