CN110356473A - A kind of vehicle redundancy rotation angular sensing system - Google Patents
A kind of vehicle redundancy rotation angular sensing system Download PDFInfo
- Publication number
- CN110356473A CN110356473A CN201910670238.8A CN201910670238A CN110356473A CN 110356473 A CN110356473 A CN 110356473A CN 201910670238 A CN201910670238 A CN 201910670238A CN 110356473 A CN110356473 A CN 110356473A
- Authority
- CN
- China
- Prior art keywords
- rotary angle
- angle transmitter
- probe
- signal
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0225—Determination of steering angle by measuring on a steering gear element, e.g. on a rack bar
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of vehicle redundancy rotation angular sensing systems, including the first rotary angle transmitter and the second rotary angle transmitter, first rotary angle transmitter is arranged on steering column, second rotary angle transmitter is the contactless rotary angle transmitter for being integrated with probe and single-chip microcontroller, second rotary angle transmitter is mounted on the shell of diverter, and its probe vertical protrudes into shell, the position for corresponding to probe on the inner casing of diverter offers signal acquisition hole, and the position that signal acquisition hole is corresponded on the input shaft of diverter is set with spur gear；When steering column follows steering wheel to rotate, first rotary angle transmitter outbound course disk angular signal, input shaft follows steering column to rotate, spur gear follows input shaft to rotate, probe passes through the flank of tooth face in signal acquisition hole and spur gear, the electric signal of the corner variation of acquisition reflection steering wheel, the electric signal export the steering wheel angle signal of redundancy after single-chip microcontroller is handled.The present invention is capable of providing more reliable steering wheel angle signal, improves vehicle driving safety.
Description
Technical field
The present invention relates to signals of vehicles acquisition systems, and in particular to a kind of vehicle redundancy rotation angular sensing system.
Background technique
Intelligent automobile has Function for Automatic Pilot, it is desirable that each critical component such as controller, power supply and sensor do redundancy and set
Meter, so that one critical component failure in automatic Pilot, backup (redundancy) design still can provide signal support.Such as corner
Sensor, the steering of automobile and braking system all can report failure because no angular signal inputs after failure, so as to draw
Play safety accident.
In order to avoid there is the above problem, redundancy corner biography is also devised on the vehicle of automatic Pilot currently, can be realized
Sensing system comprising two rotary angle transmitters, two rotary angle transmitters are all contact rotary angle transmitter, and are integrally disposed in and turn
The same position on column, when steering column follows steering wheel to rotate, a rotary angle transmitter outbound course disk angular signal, another
Rotary angle transmitter exports the steering wheel angle signal of redundancy, and both direction disk angular signal is sent on CAN line, demand direction
The controller of disk angular signal obtains steering wheel angle signal from CAN line.If the position that two rotary angle transmitters are arranged meets with
To destruction (such as two rotary angle transmitters be all worn perhaps route virtual connection or line broken circuit), two rotary angle transmitters
Angular signal can not be all provided, reliability is bad, and vehicle driving safety is not high.
Summary of the invention
The object of the present invention is to provide a kind of vehicle redundancy rotation angular sensing systems, to provide more reliable steering wheel angle letter
Number, improve vehicle driving safety.
Vehicle redundancy rotation angular sensing system of the present invention, including the first rotary angle transmitter and the second rotary angle transmitter,
First rotary angle transmitter is arranged on steering column, when steering column follows steering wheel to rotate, the first rotary angle transmitter outbound course disk
Angular signal；Second rotary angle transmitter is the contactless rotary angle transmitter for being integrated with probe and single-chip microcontroller, probe and list
Piece mechatronics, the second rotary angle transmitter are mounted on the shell of diverter, and its probe vertical protrudes into shell, diverter
The position for corresponding to probe on inner casing offers signal acquisition hole, corresponds to letter on the input shaft (being assemblied in inner casing) of diverter
Number acquisition hole position be set with spur gear；When steering column follows steering wheel to rotate, input shaft follows steering column to rotate, spur gear
Input shaft is followed to rotate, probe passes through the flank of tooth face in signal acquisition hole and spur gear, the corner variation of acquisition reflection steering wheel
Electric signal, which exports the steering wheel angle signal of redundancy after single-chip microcontroller is handled.
Preferably, second rotary angle transmitter is capacitance type angle sensor, by the tooth top and tooth root of spur gear with
The distance of the probe is different and is formed capacitor difference realizes outer corner measurement, better reliability.
First rotary angle transmitter is arranged on steering column the present invention, and the second rotary angle transmitter is arranged on diverter；
When steering wheel rotates, the first rotary angle transmitter outbound course disk angular signal on steering column, the second corner on diverter is passed
Sensor exports the steering wheel angle signal of redundancy, the first rotary angle transmitter and the second rotary angle transmitter is rarely possible will appear simultaneously
The case where failure, if the steering wheel angle dropout of the first rotary angle transmitter on steering column, second turn on diverter
Angle transducer still can provide the steering wheel angle signal of redundancy, to provide more reliable steering wheel angle letter for vehicle
Number, Vehicular turn and brake request are met, and then improve vehicle driving safety.
Detailed description of the invention
Fig. 1 is assembling schematic diagram of first rotary angle transmitter on steering column.
Fig. 2 is assembling schematic diagram of second rotary angle transmitter on diverter.
Fig. 3 is assembling structure partial sectional view of second rotary angle transmitter on diverter.
Fig. 4 is that the present invention applies the circuit frame figure on automobile.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
Vehicle redundancy rotation angular sensing system as shown in Figures 1 to 4, including the first rotary angle transmitter 1 and the second corner pass
Sensor 2；First rotary angle transmitter 1 is contact rotary angle transmitter, and the first rotary angle transmitter 1 is arranged on steering column 3.Second turn
Angle transducer 2 is the capacitance type angle sensor (for contactless rotary angle transmitter) for being integrated with probe and single-chip microcontroller, probe with
Monolithic mechatronics, the second rotary angle transmitter 2 are connected on the shell 41 of diverter 4, the probe vertical of the second rotary angle transmitter 2
It protrudes into shell 41, the position on the inner casing 42 of diverter 4 corresponding to the probe offers signal acquisition hole 43, is only somebody's turn to do corresponding
The position of probe opens up signal acquisition hole 43 can influence signal acquisition, the input shaft 44(assembly of diverter 4 to avoid other positions
In inner casing 42) on correspond to signal acquisition hole 43 position be set with spur gear 5, the probe of the second rotary angle transmitter 2 passes through
The flank of tooth face in signal acquisition hole 43 and spur gear 5 is formed between the probe of second rotary angle transmitter 2 and the flank of tooth of spur gear 5
Capacitor.
As shown in figure 4, above-mentioned vehicle redundancy rotation angular sensing system is on automobile in application, the first rotary angle transmitter 1, second
Rotary angle transmitter 2 is electrically connected with battery, and working power, the first rotary angle transmitter 1, the second rotation angular sensing are obtained from battery
Device 2 is electrically connected by CAN line with the controller 6 of demand direction disk angular signal.When steering wheel rotation, 3 side of following of steering column
It is rotated to disk, input shaft 44 follows steering column 3 to rotate, and spur gear 5 follows input shaft 44 to rotate, the output of the first rotary angle transmitter 1
Steering wheel angle signal, and be sent on CAN line, it is used for the controller 6 of demand steering wheel angle signal, due to straight-tooth
The tooth top and tooth root of wheel 5 are different at a distance from the probe of the second rotary angle transmitter 2, and the capacitor of formation can turn with spur gear 5
It moves and changes, therefore, the probe of the second rotary angle transmitter 2 can acquire the corner variation of reflection steering wheel from spur gear 5
Electric signal, the electric signal through the second rotary angle transmitter 2 single-chip microcontroller processing after export redundancy steering wheel angle signal, second
The steering wheel angle signal of the redundancy is sent on CAN line by the single-chip microcontroller of rotary angle transmitter 2, for demand steering wheel angle signal
Controller 6 use.
Claims (2)
1. a kind of vehicle redundancy rotation angular sensing system, including the first rotary angle transmitter (1) and the second rotary angle transmitter (2), first
Rotary angle transmitter (1) is arranged on steering column (3), and when steering column (3) follows steering wheel to rotate, the first rotary angle transmitter (1) is defeated
Steering wheel angle signal out；It is characterized by: second rotary angle transmitter (2) is be integrated with probe and single-chip microcontroller non-contact
Formula rotary angle transmitter, probe and monolithic mechatronics, the second rotary angle transmitter (2) are mounted on the shell (41) of diverter (4),
And its probe vertical protrudes into shell (41), the position that probe is corresponded on the inner casing (42) of diverter (4) offers signal and adopts
Collect hole (43), the position that signal acquisition hole (43) are corresponded on the input shaft (44) of diverter (4) is set with spur gear (5)；Turn
When Xiang Zhu (3) follows steering wheel to rotate, input shaft (44) follows steering column (3) to rotate, and spur gear (5) follows input shaft (44) to turn
Dynamic, probe passes through the flank of tooth face of signal acquisition hole (43) and spur gear (5), the telecommunications of the corner variation of acquisition reflection steering wheel
Number, which exports the steering wheel angle signal of redundancy after single-chip microcontroller is handled.
2. vehicle redundancy sensor-based system according to claim 1, it is characterised in that: second rotary angle transmitter (2) is
Capacitance type angle sensor, not by the tooth top and tooth root of spur gear (5) capacitors that difference is formed at a distance from the probe
With realizing outer corner measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670238.8A CN110356473A (en) | 2019-07-24 | 2019-07-24 | A kind of vehicle redundancy rotation angular sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670238.8A CN110356473A (en) | 2019-07-24 | 2019-07-24 | A kind of vehicle redundancy rotation angular sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110356473A true CN110356473A (en) | 2019-10-22 |
Family
ID=68220150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910670238.8A Pending CN110356473A (en) | 2019-07-24 | 2019-07-24 | A kind of vehicle redundancy rotation angular sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110356473A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986753A (en) * | 2019-11-29 | 2020-04-10 | 苏州长风航空电子有限公司 | Double-redundancy non-contact transformer type angular displacement sensor |
| CN112158257A (en) * | 2020-09-03 | 2021-01-01 | 中国第一汽车股份有限公司 | Angle sensor for L4-grade automatic driving vehicle |
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| CN101216333A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Capacitance type angle sensor calibration apparatus |
| JP2014115251A (en) * | 2012-12-12 | 2014-06-26 | Act Lsi:Kk | Capacitance gear tooth and method for detecting rotational speed of capacitance rotor |
| CN204548230U (en) * | 2015-04-28 | 2015-08-12 | 盐城工学院 | A kind of auto steerer |
| US9308935B2 (en) * | 2013-11-27 | 2016-04-12 | Honda Motor Co., Ltd. | Electric power steering apparatus |
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| CN106926894A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Steering wheel rotation information determining device and steering wheel rotation information determine method |
| CN107776660A (en) * | 2017-10-17 | 2018-03-09 | 哈尔滨工业大学 | New automobile electric boosting steering system torque rotary angle transmitter and its detection method |
| JP2018047902A (en) * | 2015-10-08 | 2018-03-29 | 日本精工株式会社 | Vehicular steering angle detecting device and electric power steering device mounted with the same |
| CN109808764A (en) * | 2019-02-28 | 2019-05-28 | 中国第一汽车股份有限公司 | A kind of steer by wire apparatus having redundancy feature and control method |
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2019
- 2019-07-24 CN CN201910670238.8A patent/CN110356473A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2117629U (en) * | 1992-04-10 | 1992-09-30 | 四川通达机电技术开发公司 | Automatically stepless speed regulating variator |
| CN1891553A (en) * | 2006-05-30 | 2007-01-10 | 上海燃料电池汽车动力系统有限公司 | Mounting structure of contactless torque angle sensor for electric booster steering system |
| CN101037117A (en) * | 2007-05-05 | 2007-09-19 | 王粤江 | Device for displaying the turning angel of the turning wheel of automobile |
| CN101216333A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Capacitance type angle sensor calibration apparatus |
| JP2014115251A (en) * | 2012-12-12 | 2014-06-26 | Act Lsi:Kk | Capacitance gear tooth and method for detecting rotational speed of capacitance rotor |
| US9308935B2 (en) * | 2013-11-27 | 2016-04-12 | Honda Motor Co., Ltd. | Electric power steering apparatus |
| CN106471347A (en) * | 2014-07-09 | 2017-03-01 | 日立汽车系统株式会社 | Rotary angle detecting device and power steering gear |
| CN204548230U (en) * | 2015-04-28 | 2015-08-12 | 盐城工学院 | A kind of auto steerer |
| JP2018047902A (en) * | 2015-10-08 | 2018-03-29 | 日本精工株式会社 | Vehicular steering angle detecting device and electric power steering device mounted with the same |
| CN108025762A (en) * | 2015-10-08 | 2018-05-11 | 日本精工株式会社 | Vehicle turns to angle detecting device and is equipped with the electric power-assisted steering apparatus that the vehicle turns to angle detecting device |
| CN106926894A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Steering wheel rotation information determining device and steering wheel rotation information determine method |
| CN107776660A (en) * | 2017-10-17 | 2018-03-09 | 哈尔滨工业大学 | New automobile electric boosting steering system torque rotary angle transmitter and its detection method |
| CN109808764A (en) * | 2019-02-28 | 2019-05-28 | 中国第一汽车股份有限公司 | A kind of steer by wire apparatus having redundancy feature and control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986753A (en) * | 2019-11-29 | 2020-04-10 | 苏州长风航空电子有限公司 | Double-redundancy non-contact transformer type angular displacement sensor |
| CN110986753B (en) * | 2019-11-29 | 2021-08-20 | 苏州长风航空电子有限公司 | Double-redundancy non-contact transformer type angular displacement sensor |
| CN112158257A (en) * | 2020-09-03 | 2021-01-01 | 中国第一汽车股份有限公司 | Angle sensor for L4-grade automatic driving vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191022 |
|
| RJ01 | Rejection of invention patent application after publication |