CN108749917A - A kind of passenger car electric servo steering device - Google Patents

A kind of passenger car electric servo steering device Download PDF

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Publication number
CN108749917A
CN108749917A CN201810948286.4A CN201810948286A CN108749917A CN 108749917 A CN108749917 A CN 108749917A CN 201810948286 A CN201810948286 A CN 201810948286A CN 108749917 A CN108749917 A CN 108749917A
Authority
CN
China
Prior art keywords
torque
input shaft
output shaft
steering
steering wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810948286.4A
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Chinese (zh)
Inventor
孙尚志
何晨
凌杰
汪金辰
李雁斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Ankai Automobile Co Ltd
Original Assignee
Anhui Ankai Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Ankai Automobile Co Ltd filed Critical Anhui Ankai Automobile Co Ltd
Priority to CN201810948286.4A priority Critical patent/CN108749917A/en
Publication of CN108749917A publication Critical patent/CN108749917A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/04Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D3/00Steering gears
    • B62D3/02Steering gears mechanical
    • B62D3/04Steering gears mechanical of worm type
    • B62D3/10Steering gears mechanical of worm type with worm engaging in sector or roller gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D6/00Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

The present invention discloses a kind of passenger car electric servo steering device, including input shaft, output shaft, it is arranged in input shaft and shell, the worm screw being sequentially connected with output shaft, the motor that is connect with worm screw and the ECU control units with motor communication connection outside output shaft, the input shaft is coaxially set with output shaft, and both input shaft and output shaft are fixedly connected by torque arm;The input shaft, which is connected with exporting axis in the outer circle at end, is provided with torque angle sensor, and torque angle sensor is connected with the communication of ECU control units;Turbine is fixedly connected with by flat key on the outer wall of the output shaft, turbine is a pair of reversible deceleration transmission pair with the worm screw.The passenger car electric servo steering device of the present invention, it is combined with traditional car hydraulic steering system, three kinds of operating modes can be achieved, i.e. hydraulic booster with it is electric boosted work at the same time pattern, it is electric boosted work independently pattern and artificial mechanism hydraulic booster works independently pattern, keep the steering boost system of car more safe and reliable.

Description

A kind of passenger car electric servo steering device
Technical field
The invention belongs to Bus Technology fields, specifically, being related to a kind of passenger car electric servo steering device.
Background technology
In the development course of automobile, steering is developed to hydraulic power steering system by initial mechanical steering System is changed into Electro-Hydraulic Power Steering System from hydraulic power-assist steering system, then has Electro-Hydraulic Power Steering System transformation For electric boosting steering system, wherein electric booster system is to provide power steering by electric boosted machine, reduces energy consumption, adjusts Simply, assembly is flexible, can provide power steering in several situations, while electric boosted machine is connected with electronic control list Member, electronic control unit provide the power steering of respective strengths by the electric boosted machine of the factor controllings such as speed, torque angle.
In the prior art, there are two types of the steering forms of electric boosting steering system, one is use electric boosted component It is installed on steering hub column, but this mounting structure installation and maintenance are inconvenient, and improve steering hub column manufacture and bring complexity Property, another kind is the circular ball type steering using hydraulic power-assisted steering and electric boosted combination, but this steering Complicated, volume is big and arrangement is inconvenient, of high cost.It is mentioned above in steering boost system in order to solve the problems, such as, to obtain A kind of simple in structure, dependable performance, using passenger car electric servo steering device the features such as convenience, the present invention provides following skills Art scheme.
Invention content
The purpose of the present invention is to provide a kind of passenger car electric servo steering devices.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of passenger car electric servo steering device, including input shaft, output shaft, be arranged outside input shaft and output shaft Shell, torque arm, torque angle sensor, with output shaft be sequentially connected turbine, worm screw, the motor being connect with worm screw and with The ECU control units of motor communication connection, the input shaft are coaxially set with output shaft, and both input shaft and output shaft pass through Torque arm is fixedly connected;
The input shaft is connected with exporting axis in the outer circle at end and is provided with torque angle sensor, torque angle sensor The outer wall of an inner circle part and input shaft connects, and another part of torque angle sensor inner circle and the outer wall of output shaft connect, The torque angle sensor is connected with the communication of ECU control units, and torque angle sensor detects torque and the corner of input shaft Signal, and by the electric signal output of torque and corner to ECU control units;
If being socketed with dry bearing on the outer wall of the input shaft and output shaft, the outer shroud of bearing is fixed on the inside of shell, The shell of shell is fixedly mounted on the chassis of car;
Be respectively fixed with left end cap and right end cap on the left and right ends face of the shell, left end cap with worn respectively in right end cap Input shaft and output shaft are crossed, oil enveloping structure is built-in in left end cap and right end cap;
Turbine is fixedly connected with by flat key on the outer wall of the output shaft, the both sides of turbine are provided with spacer, spacer set It is connected on the outer wall of output shaft, turbine is a pair of reversible deceleration transmission pair with the worm screw.
As the further scheme of the present invention, both the input shaft and output shaft connect one end and are provided with axial bore, The outer end of axial bore is provided with radial pin hole, and torque arm is provided in the axial bore of input shaft and output shaft, torque arm Both ends are inserted into radial pin hole by axis pin are fixedly connected with input shaft and output shaft respectively.
As the further scheme of the present invention, the passenger car electric servo steering device is arranged in angle transmission and direction Between machine, wherein input shaft is connect with angle transmission, and output shaft is connect with steering wheel.
As the further scheme of the present invention, the quantity of the bearing is three, and two of which bearing is socketed in output shaft Outer wall on, another bearing is socketed on the outer wall of input shaft.
As the further scheme of the present invention, round nut, circle spiral shell are provided between the oil enveloping structure and adjacent bearing Mother stock is not screwed up by helicitic texture on the outer wall of input shaft and output shaft.
As the further scheme of the present invention, the working method of the electric power-assisted steering apparatus is:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft rotates, to drive Torque arm and torque angle sensor torsional deformation, this torsional deformation generate electric signal and input ECU control units, ECU systems Steering-wheel torque is converted by calculating, when steering-wheel torque reaches set target value, remaining torque is led to by motor output torque Turbine is crossed with the reversible transmission deceleration torque of worm screw to provide, torque passes jointly after steering-wheel torque provides torque couple with motor It is delivered on the input shaft of steering wheel, steering wheel is made to do hydraulic booster work, realize that car turns to;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, defeated by motor Go out torque and steering drag is overcome by the torque of turbine and the reversible transmission torque of worm screw, when manipulating steering wheel, rotation angle of torque Sensor constantly measures steering and dtc signal on input shaft, which is input to ECU control lists simultaneously with speed ??signal Member, ECU control units determine that size and the steering of motor torque, motor drive turbine and worm screw reversible transmission according to input signal Dynamic pair, is transmitted to steering wheel, drives the left and right swing of plumbing arm on steering wheel, realizes that car turns to;
When the motor of car breaks down, steering can be added in the manual torque of steering wheel by driver, pass through Input shaft and output shaft drive the rotation of steering wheel input shaft, steering wheel are made to do hydraulic booster work, realize that car turns to.
Beneficial effects of the present invention:
1, passenger car electric servo steering device of the invention, is combined with traditional car hydraulic steering system, it can be achieved that three Kind operating mode, i.e. hydraulic booster work at the same time pattern, electric boosted pattern and the artificial mechanism liquid of working independently with electric boosted Pressure power-assisted works independently pattern, keeps the steering boost system of car more safe and reliable.
2, structure of the invention is compared to traditional servo steering device, simpler, the volume smaller of whole device, no Big quantity space can be occupied, facilitates installation and is laid with.
Description of the drawings
The present invention will be further described below with reference to the drawings.
Fig. 1 is the structural schematic diagram of the present invention;
Fig. 2 is the side view of structure of the invention;
Fig. 3 is connection diagram of the present invention in automobile steering transmission system.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field All other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects It encloses.
A kind of passenger car electric servo steering device, as shown in Figure 1 and Figure 2, including input shaft 1, output shaft 8, setting inputting Axis 1 and the shell 5 outside output shaft 8, torque arm 2, torque angle sensor 4, the turbine 6 being sequentially connected with output shaft 8, worm screw 11, the motor 12 being connect with worm screw 11 and the ECU control units with the communication connection of motor 12, the input shaft 1 and output shaft 8 It is coaxially set, input shaft 1 connect one end with 8 the two of output shaft and is provided with axial bore, and the outer end of axial bore is provided with diameter To pin hole, input shaft 1 is provided with torque arm 2 with the axial bore of output shaft, and the both ends of torque arm 2 are inserted by axis pin respectively It is fixedly connected with input shaft 1 and output shaft 8 in radial pin hole, to realize being connected and fixed for input shaft 1 and output shaft 8, such as Fig. 3 Shown, the passenger car electric servo steering device is arranged between angle transmission and steering wheel, and wherein input shaft 1 is driven with angle Device connects, and output shaft 8 is connect with steering wheel.
The input shaft 1 is sensed with torque angle sensor 4, rotation angle of torque is provided in the outer circle of 8 connecting pin of output shaft An inner circle part for device 4 is connect with the outer wall of input shaft 1, and another part of 4 inner circle of torque angle sensor is outer with output shaft 8 Wall connects, and the torque angle sensor 4 is connected with the communication of ECU control units, and torque angle sensor 4 detects input shaft 1 Torque and angular signal, and by the electric signal output of torque and corner to ECU control units.
If the input shaft 1 is socketed with dry bearing 10 on the outer wall of output shaft 8, in one embodiment of the invention, The quantity of bearing 10 is three, and two of which bearing 10 is socketed on the outer wall of output shaft 8, another bearing 10 is socketed in input On the outer wall of axis 1, the outer shroud of bearing 10 is fixed on the inside of shell 5, and threaded hole is provided on the shell of shell 5, and shell 5 passes through The threaded hole is fixedly mounted on bolt on the chassis of car, and bearing 10 plays well input shaft 1 and output shaft 8 with shell 5 Support effect.
Be respectively fixed with left end cap 3 and right end cap 7 on the left and right ends face of the shell 5, left end cap 3 in right end cap 7 It is each passed through input shaft 1 and output shaft 8, oil enveloping structure 9 is built-in in left end cap 3 and right end cap 7, to the connection in shell 5 Structure plays good protecting effect, prevents dust debris from entering the normal work that junction influences device;
Round nut 15 is provided between the oil enveloping structure 9 and adjacent bearing 10, round nut 15 passes through screw thread knot respectively Structure screws up on the outer wall of input shaft 1 and output shaft 8, prevents the generation of input shaft 1, output shaft 8 and shell 5 is opposite from sliding;
Turbine 6 is fixedly connected with by flat key 14 on the outer wall of the output shaft 8, the both sides of turbine 6 are provided with spacer 13, Spacer 13 is socketed on the outer wall of output shaft 8, and turbine 6 and the worm screw 11 are a pair of reversible deceleration transmission pair, and when work can lead to Crossing motor 12 drives worm screw 11 to rotate, and worm screw 11 is further driven to the rotation of turbine 6 to realize the rotation of output shaft 8.
The present invention working method be:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft 1 rotates, to band 4 torsional deformation of dynamic torque arm 2 and torque angle sensor, this torsional deformation generate electric signal and input ECU control units, ECU System is by calculating conversion steering-wheel torque, and when steering-wheel torque reaches set target value, (steering-wheel torque cannot make at this time Steering wheel works), remaining torque is carried by turbine 6 with 11 reversible transmission deceleration torque of worm screw by 12 output torque of motor For torque is transmitted on the input shaft of steering wheel jointly after steering-wheel torque provides torque couple with motor 12, and steering wheel is made to do Hydraulic booster works, and realizes that car turns to, i.e., hydraulic booster works at the same time pattern with electric boosted;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, only by motor 12 output torques overcome steering drag by the torque of turbine 6 and 11 reversible transmission torque of worm screw, when manipulating steering wheel, turn round Square rotary angle transmitter 4 constantly measures steering and dtc signal on input shaft 1, which is input to simultaneously with speed ??signal ECU control units, ECU control units determine that size and the steering of 12 torque of motor, motor 12 drive turbine according to input signal 6 with 11 reversible transmission of worm screw, be transmitted to steering wheel, drive the left and right swing of plumbing arm on steering wheel, realize that car turns to, i.e., The electric boosted pattern that works independently;
When the motor 12 of car breaks down, steering can be added in the manual torque of steering wheel by driver, warp Input shaft 1 and output shaft 8 are crossed, the rotation of steering wheel input shaft is driven, steering wheel is made to do hydraulic booster work, realizes that car turns to, That is artificial mechanism hydraulic booster works independently pattern.
The passenger car electric servo steering device of the present invention, is combined with traditional car hydraulic steering system, it can be achieved that three kinds Operating mode, i.e. hydraulic booster work at the same time pattern, electric boosted pattern and the artificial mechanism hydraulic pressure of working independently with electric boosted Power-assisted works independently pattern, keeps the steering boost system of car more safe and reliable, while the structure of the present invention is compared to tradition Servo steering device, simpler, the volume smaller of whole device will not occupy big quantity space, facilitate installation be laid with.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple Described specific embodiment does various modifications or additions or substitutes by a similar method, without departing from invention Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.

Claims (6)

1. a kind of passenger car electric servo steering device, which is characterized in that inputted including input shaft (1), output shaft (8), setting Axis (1) shell (5) external with output shaft (8), torque arm (2), torque angle sensor (4) and output shaft (8) are sequentially connected Turbine (6), worm screw (11), the motor (12) being connect with worm screw (11) and controlled with the ECU of motor (12) communication connection single Member, the input shaft (1) are coaxially set with output shaft (8), and both input shaft (1) and output shaft (8) are solid by torque arm (2) Fixed connection;
The input shaft (1) passes with torque angle sensor (4), rotation angle of torque is provided in the outer circle of output shaft (8) connecting pin An inner circle part for sensor (4) is connect with the outer wall of input shaft (1), another part of torque angle sensor (4) inner circle with it is defeated The outer wall of shaft (8) connects, and the torque angle sensor (4) connects with the communication of ECU control units, torque angle sensor (4) torque of detection input shaft (1) and angular signal, and by the electric signal output of torque and corner to ECU control units;
The input shaft (1) and output shaft (8) if outer wall on be socketed with dry bearing (10), the outer shroud of bearing (10) is fixed on shell The shell of the inside of body (5), shell (5) is fixedly mounted on the chassis of car;
Left end cap (3) and right end cap (7), left end cap (3) and right end cap are respectively fixed on the left and right ends face of the shell (5) (7) it is each passed through input shaft (1) and output shaft (8) in, oil enveloping structure (9) is built-in in left end cap (3) and right end cap (7);
Turbine (6) is fixedly connected with by flat key (14) on the outer wall of the output shaft (8), the both sides of turbine (6) be provided with every It covers (13), spacer (13) is socketed on the outer wall of output shaft (8), and turbine (6) is that a pair of reversible deceleration passes with the worm screw (11) Dynamic pair.
2. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the input shaft (1) with Both output shafts (8) connection one end is provided with axial bore, and the outer end of axial bore is provided with radial pin hole, input shaft (1) with Be provided with torque arm (2) in the axial bore of output shaft, the both ends of torque arm (2) respectively by axis pin be inserted into radial pin hole with Input shaft (1) is fixedly connected with output shaft (8).
3. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the passenger car electric power-assisted Transfer is arranged between angle transmission and steering wheel, and wherein input shaft (1) is connect with angle transmission, output shaft (8) It is connect with steering wheel.
4. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the number of the bearing (10) Amount is three, and two of which bearing (10) is socketed on the outer wall of output shaft (8), another bearing (10) is socketed in input shaft (1) on outer wall.
5. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the oil enveloping structure (9) Round nut (15) is provided between adjacent bearing (10), round nut (15) is screwed up by helicitic texture in input shaft respectively (1) and on the outer wall of output shaft (8).
6. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the electric power steering fills The working method set is:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft (1) rotates, to drive Torque arm (2) and torque angle sensor (4) torsional deformation, this torsional deformation generate electric signal and input ECU control units, ECU systems are by calculating conversion steering-wheel torque, and when steering-wheel torque reaches set target value, remaining torque is by motor (12) Output torque is provided by turbine (6) with the reversible transmission deceleration torque of worm screw (11), and steering-wheel torque is carried with motor (12) It is transmitted on the input shaft of steering wheel jointly for torque after torque couple, steering wheel is made to do hydraulic booster work, realize that car turns To;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, defeated by motor (12) Go out torque and steering drag is overcome by the torque of turbine (6) and the reversible transmission torque of worm screw (11), when manipulating steering wheel, turns round Square rotary angle transmitter (4) constantly measures steering and dtc signal on input shaft (1), which inputs simultaneously with speed ??signal To ECU control units, ECU control units determine the size and steering of motor (12) torque, motor (12) band according to input signal Dynamic turbine (6) and worm screw (11) reversible transmission, are transmitted to steering wheel, drive the left and right swing of plumbing arm on steering wheel, realize visitor Vehicle turns to;
When the motor (12) of car breaks down, steering can be added in the manual torque of steering wheel by driver, pass through Input shaft (1) and output shaft (8) drive the rotation of steering wheel input shaft, steering wheel are made to do hydraulic booster work, realize that car turns To.
CN201810948286.4A 2018-08-20 2018-08-20 A kind of passenger car electric servo steering device Pending CN108749917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810948286.4A CN108749917A (en) 2018-08-20 2018-08-20 A kind of passenger car electric servo steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810948286.4A CN108749917A (en) 2018-08-20 2018-08-20 A kind of passenger car electric servo steering device

Publications (1)

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CN108749917A true CN108749917A (en) 2018-11-06

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CN201810948286.4A Pending CN108749917A (en) 2018-08-20 2018-08-20 A kind of passenger car electric servo steering device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113443001A (en) * 2020-03-27 2021-09-28 操纵技术Ip控股公司 Variable stroke stop for improving durability of worm gear

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10329729A (en) * 1997-05-28 1998-12-15 Honda Motor Co Ltd Electric power steering system
US6328128B1 (en) * 1999-07-19 2001-12-11 Nsk Ltd. Electric power steering apparatus
JP2007290550A (en) * 2006-04-25 2007-11-08 Nsk Ltd Electric power steering device
CN201264171Y (en) * 2008-08-05 2009-07-01 陈立新 Radial movement mechanism
CN104401388A (en) * 2014-10-23 2015-03-11 北京奥特尼克科技有限公司 Intelligent electro-hydraulic steering system
CN107520892A (en) * 2017-10-11 2017-12-29 青岛理工大学 A kind of manual carborundum line cutting machine
CN107670556A (en) * 2017-11-03 2018-02-09 青岛科技大学 A kind of convertible self- poking arrangement of moment of torsion
CN208630693U (en) * 2018-08-20 2019-03-22 安徽安凯汽车股份有限公司 A kind of passenger car electric servo steering device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10329729A (en) * 1997-05-28 1998-12-15 Honda Motor Co Ltd Electric power steering system
US6328128B1 (en) * 1999-07-19 2001-12-11 Nsk Ltd. Electric power steering apparatus
JP2007290550A (en) * 2006-04-25 2007-11-08 Nsk Ltd Electric power steering device
CN201264171Y (en) * 2008-08-05 2009-07-01 陈立新 Radial movement mechanism
CN104401388A (en) * 2014-10-23 2015-03-11 北京奥特尼克科技有限公司 Intelligent electro-hydraulic steering system
CN107520892A (en) * 2017-10-11 2017-12-29 青岛理工大学 A kind of manual carborundum line cutting machine
CN107670556A (en) * 2017-11-03 2018-02-09 青岛科技大学 A kind of convertible self- poking arrangement of moment of torsion
CN208630693U (en) * 2018-08-20 2019-03-22 安徽安凯汽车股份有限公司 A kind of passenger car electric servo steering device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113443001A (en) * 2020-03-27 2021-09-28 操纵技术Ip控股公司 Variable stroke stop for improving durability of worm gear
US11697454B2 (en) 2020-03-27 2023-07-11 Steering Solutions Ip Holding Corporation Variable travel stop to increase worm gear durability
CN113443001B (en) * 2020-03-27 2023-07-14 操纵技术Ip控股公司 Variable travel stop for improved worm gear durability

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