CN102062210B - Contact type gear sensor - Google Patents
Contact type gear sensor Download PDFInfo
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- CN102062210B CN102062210B CN201010581680.2A CN201010581680A CN102062210B CN 102062210 B CN102062210 B CN 102062210B CN 201010581680 A CN201010581680 A CN 201010581680A CN 102062210 B CN102062210 B CN 102062210B
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- gear
- water conservancy
- conservancy diversion
- contact
- rail
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Abstract
The invention discloses a kind of contact type gear sensor, comprise lower shell body, rotor and stitch, lower shell body comprises the gear water conservancy diversion rail of at least three circular arcs, each bar gear water conservancy diversion rail concentric and the arrangement of parallel insulation gap, each bar gear water conservancy diversion rail is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, and wherein the diversion section of at least two gear water conservancy diversion rails has overlap region; Rotor comprises at least three gear spring contacts, each gear spring contact one_to_one corresponding is pressed together on corresponding gear water conservancy diversion rail, and rotor rotates around the described center of circle; Stitch comprises a signal power source contact pin and at least three gear signal contact pins, and signal power source contact pin is electrically connected each gear spring contact, the diversion section of each gear signal contact pin one_to_one corresponding electrical connection each gear water conservancy diversion rail corresponding.The present invention's level state assembly coding that each gear signal contact pin is formed represents each gear positions and transforming gear, can monitor the transforming gear information in gearshift procedure.
Description
Technical field
The present invention relates to automotive electronic technology, particularly relate to a kind of contact type gear sensor.
Background technique
Common contact type gear sensor, comprises upper cover plate, lower shell body, rotor and stitch,
Lower shell body comprises a gear water conservancy diversion rail and two to start and reverse gear water conservancy diversion rail, gear water conservancy diversion rail and two start and reverse gear water conservancy diversion rail concentric, gear water conservancy diversion rail comprises multiple gear signal contact-segments such as parking shelves P, reverse gear R, neutral gear N, forward gears D, and two start and comprise respectively start contact-segment, reverse gear contact-segment with reverse gear water conservancy diversion rail;
Rotor is arranged in the enclosed space of upper cover plate and lower shell body formation, rotates with the center of circle of reverse gear water conservancy diversion rail around gear water conservancy diversion rail and startup, and rotor comprises gear contact and startup reverse gear contact disk;
Stitch comprises two starting circuit contact pins, two reverse gear circuit contact pins, a signal power source contact pin, and multiple gear signal contact pin such as parking shelves P, reverse gear R, neutral gear N, forward gears D; Two starting circuit contact pins connect two respectively and start the startup contact-segment with reverse gear water conservancy diversion rail, two reverse gear circuit contact pins connect two respectively and start the reverse gear contact-segment with reverse gear water conservancy diversion rail, signal power source contact pin connects epitrochanterian gear contact, and multiple gear signal contact pin such as parking shelves P, reverse gear R, neutral gear N, forward gears D connects the multiple gear signal contact-segment such as parking shelves P, reverse gear R, neutral gear N, forward gears D on gear water conservancy diversion rail respectively;
Rotor rotates with the center of circle of reverse gear water conservancy diversion rail around gear water conservancy diversion rail and starting, when epitrochanterian startup reverse gear contact disk be pressed together on two start in the startup contact-segment with reverse gear water conservancy diversion rail time, two starting circuit contact pins connections on stitch; When epitrochanterian startup reverse gear contact disk be pressed together on two start with the reverse gear contact-segment of reverse gear water conservancy diversion rail on time, two reverse gear circuit contact pins on stitch are communicated with; When touching the gear signal contact-segment such as car stop P, reverse gear R, neutral gear N, forward gears D on gear water conservancy diversion rail respectively when epitrochanterian gear contact, the gear signal contact pin such as corresponding parking shelves P, reverse gear R, neutral gear N, forward gears D is connection signal power supply respectively, exports corresponding gear signal.
Common contact type gear sensor, gear signal is exported owing to mainly adopting the mode of switching value, the gear information exported is single, and gear box control unit (TCU) can only monitor the position information of each gear, can not monitor the transforming gear information in gearshift procedure.Therefore gear box control unit cannot carry out diagnosing and error correction when gear signal occurs abnormal, brings potential safety hazard to driving.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of contact type gear sensor, can monitor the transforming gear information in gearshift procedure, and gear box control unit can carry out diagnosing and error correction when gear signal occurs abnormal.
For solving the problems of the technologies described above, contact type gear sensor of the present invention, comprises lower shell body, rotor and stitch,
Lower shell body comprises the gear water conservancy diversion rail of at least three circular arcs, each bar gear water conservancy diversion rail concentric and the arrangement of parallel insulation gap, each bar gear water conservancy diversion rail is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, and wherein the diversion section of at least two gear water conservancy diversion rails has overlap region;
Rotor comprises at least three gear spring contacts, each gear spring contact one_to_one corresponding is pressed together on corresponding gear water conservancy diversion rail respectively, and rotor rotates around the described center of circle;
Stitch comprises a signal power source contact pin and at least three gear signal contact pins, and signal power source contact pin is electrically connected each gear spring contact, and each gear signal contact pin one_to_one corresponding is electrically connected the diversion section of each gear water conservancy diversion rail corresponding respectively.
Lower shell body also comprises startup and the reverse gear water conservancy diversion rail of two circular arcs, article two, to start with reverse gear water conservancy diversion rail with each bar gear water conservancy diversion rail concentric and parallel insulation gap arrange, two start and reverse gear water conservancy diversion rail comprises startup contact-segment, the reverse gear contact-segment split by insulator respectively;
Rotor also comprises a startup and reverse gear elastic sheet metal, and startup and reverse gear elastic sheet metal are pressed together on two and start with on reverse gear water conservancy diversion rail;
Stitch also comprises two starting circuit contact pins, two reverse gear circuit contact pins, and two starting circuit contact pins connect two respectively and start the startup contact-segment with reverse gear water conservancy diversion rail, and two reverse gear circuit contact pins connect two respectively and start the reverse gear contact-segment with reverse gear water conservancy diversion rail.
Contact type gear sensor also comprises a upper cover plate, and described rotor is arranged on upper cover plate and lower shell body fastens in the enclosed space of formation;
Upper cover plate comprises the signal power source water conservancy diversion rail of a circular arc, after upper cover plate and lower shell body fasten, and signal power source water conservancy diversion rail and gear water conservancy diversion rail concentric;
Lower shell body also comprises a metal elastic gonosome, and described metal elastic gonosome is pressed together on described signal power source water conservancy diversion rail;
Rotor also comprises a water conservancy diversion tinsel, a power supply spring contact, and described water conservancy diversion tinsel is with described power supply spring contact and the electrical connection of each gear spring contact, and power supply spring contact is pressed together on described signal power source water conservancy diversion rail;
Signal power source contact pin is with the metal elastic gonosome electrical connection on lower shell body.
Described lower shell body can there be three gear water conservancy diversion rails.
Contact type gear sensor of the present invention, lower shell body arranges the gear water conservancy diversion rail of at least three concentrics, each bar gear water conservancy diversion rail is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, each bar gear water conservancy diversion rail connects corresponding gear signal contact pin on stitch respectively, gear water conservancy diversion rail is parallel insulation arrangement between two, and at least two the diversion section of gear water conservancy diversion rail has overlap region, there is insulator interval between each diversion section due to same gear water conservancy diversion rail and be electrically connected under insulator, when epitrochanterian gear spring contact touches the diversion section of a gear water conservancy diversion rail, the gear signal contact pin connecting this gear water conservancy diversion rail is just high level, during insulator when between the diversion section that epitrochanterian gear spring contact touches a gear water conservancy diversion rail, the gear signal contact pin connecting this gear water conservancy diversion rail is just low level, and have overlap region due to the diversion section of at least two gear water conservancy diversion rails, like this when rotor turns to a position around the described center of circle, each gear signal contact pin on the stitch be connected respectively with each bar gear water conservancy diversion rail can form different level state combinations, thus each gear positions information and transforming gear information can be represented with the level state assembly coding that each gear signal contact pin is formed, the level state combination that can be formed according to each gear signal contact pin is encoded, and when a gear changes to another gear, make described coding do twice bit conversion, to represent that corresponding gear positions information and transforming gear information are encoded.Contact type gear sensor of the present invention can not only detect gear positions information, but also transforming gear information is detected, can be that gear box control unit (TCU) carry out diagnosis and error correction provides foundation, improve the Security of driving, simultaneously compact dimensions.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is contact type gear sensor one mode of execution schematic diagram of the present invention;
Fig. 2 is contact type gear sensor one mode of execution rotor schematic diagram of the present invention;
Fig. 3 is contact type gear sensor one mode of execution upper cover plate schematic diagram of the present invention.
Embodiment
Contact type gear sensor one mode of execution of the present invention as shown in Figure 1, comprises upper cover plate 1, lower shell body 2, rotor 3 and stitch 4, and rotor 3 is arranged on upper cover plate 1 and lower shell body 2 fastens in the enclosed space of formation;
As shown in Figure 3, upper cover plate 1 comprises the signal power source water conservancy diversion rail 5 of a circular arc;
As shown in Figure 1, lower shell body 2 comprises two and start and reverse gear water conservancy diversion rail 21, at least three gear water conservancy diversion rails 22, piece of metal elastomers 7, each bar gear water conservancy diversion rail 22 and two startups are concentric circular arc with reverse gear water conservancy diversion rail 21, parallel insulation gap arrangement; Article two, start and comprise with reverse gear water conservancy diversion rail 21 startup contact-segment 211, the reverse gear contact-segment 212 split by insulator respectively; Each bar gear water conservancy diversion rail 22 is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, wherein the diversion section of at least two gear water conservancy diversion rails has overlap region (i.e. point on arbitrary diversion section of a wherein gear water conservancy diversion rail connects with the described center of circle in the straight line formed, and includes the straight line of the diversion section through another gear water conservancy diversion rail);
As shown in Figure 2, rotor 3 comprises a water conservancy diversion tinsel 8, one power supply spring contact 30, at least three gear spring contacts 31, one starts and reverse gear elastic sheet metal 9, described water conservancy diversion tinsel 8 is electrically connected with described power supply spring contact 30 and gear spring contact 31, after upper cover plate 1 and lower shell body 2 fasten, signal power source water conservancy diversion rail 5 and gear water conservancy diversion rail 22 concentric, metal elastic gonosome 7 on lower shell body 2 is pressed together on signal power source water conservancy diversion rail 5, power supply spring contact 30 is also pressed together on signal power source water conservancy diversion rail 5, each gear spring contact 31 one_to_one corresponding is pressed together on corresponding gear water conservancy diversion rail 22 respectively, thus make metal elastic gonosome 7, signal power source water conservancy diversion rail 5, power supply spring contact 30, water conservancy diversion tinsel 8, gear spring contact 31 electric connection, rotor 3 rotates with the center of circle of reverse gear water conservancy diversion rail 21 around gear water conservancy diversion rail 22 and startup, startup and reverse gear elastic sheet metal 9 are pressed together on two and start with on reverse gear water conservancy diversion rail 21,
Stitch 4, for power supply and output signal, comprises two starting circuit contact pins, two reverse gear circuit contact pins, a signal power source contact pin and at least three gear signal contact pins; Two starting circuit contact pins connect two respectively and start the startup contact-segment 211 with reverse gear water conservancy diversion rail 21, two reverse gear circuit contact pins connect two respectively and start the reverse gear contact-segment 212 with reverse gear water conservancy diversion rail 21, metal elastic gonosome 7 on signal power source contact pin electrical connection lower shell body 2, each gear signal contact pin one_to_one corresponding connects the diversion section of each gear water conservancy diversion rail 22 corresponding respectively.
Contact type gear sensor shown in Fig. 1, rotor 3 rotates with the center of circle of reverse gear water conservancy diversion rail 21 around gear water conservancy diversion rail 22 and startup, when the startup on rotor 3 and reverse gear elastic sheet metal 9 be pressed together on two start with the startup contact-segment 211 of reverse gear water conservancy diversion rail 21 on time, two starting circuit contact pins on stitch 4 are communicated with, when the startup on rotor 3 and reverse gear elastic sheet metal 9 be pressed together on two start with the reverse gear contact-segment 212 of reverse gear water conservancy diversion rail 21 on time, two reverse gear circuit contact pins on stitch 4 are communicated with, when each gear spring contact 31 on rotor 3 touches each diversion section on each gear water conservancy diversion rail 22 corresponding, corresponding gear signal contact pin connection signal power supply on stitch 4, when being positioned at the insulator between each diversion section on each gear water conservancy diversion rail 22 corresponding when each gear spring contact on rotor 3, corresponding gear signal contact pin cut-off signal power supply on stitch 4, by the combinations of states that at least three gear signal contact pins are switched on or switched off in the signal power source of synchronization, export the assembly coding signal of at least three, as the information detecting gear positions and transforming gear.
To be applied in, there is P, R, N, D (P-parking shelves, R-reverse gear, N-neutral gear, D-forward gears) four gears automatic transmission case on contact type gear sensor be an embodiment, as shown in table 1, SW1 ~ SW3 is the signal power source on off operating mode on three gear signal contact pins, represent respectively and whether three gear water conservancy diversion rails 22 have diversion section touch corresponding gear spring contact 31 on rotor 3, SW4 is the on off operating mode of two starting circuit contact pins on stitch 4, whether the startup on expression rotor 3 and reverse gear contact disk 9 are pressed together in two startup contact-segments 211 started with reverse gear water conservancy diversion rail 21, SW5 is the on off operating mode of two reverse gear circuit contact pins on stitch 4, whether the startup on expression rotor 3 and reverse gear contact disk 9 are pressed together in two reverse gear contact-segments 212 started with reverse gear water conservancy diversion rail 21, 0 is low level, represent access failure, 1 is high level, represent and connect.
Table 1
| SW1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 |
| SW2 | 1 | 1 | 0 | 0 | 1 | 1 | 0 |
| SW3 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| SW4 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| SW5 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| P | P-R | R | R-N | N | N-D | D |
The contact type gear sensor of this embodiment, to gear P, R, N, P-R in the position information of D and gearshift procedure, R-N, N-D transforming gear information carries out tri-bit encoding, and when changing to another gear from a gear, described coding does twice bit conversion, such as from P shelves to R shelves, need first to do a bit conversion to P-R (110) from P (010), then do a bit conversion to R (100) from P-R (110).When gear signal is when R shelves occur abnormal (being generally interruption), gear box control unit (TCU) can carry out diagnosing and error correction according to P shelves coding and P-R coding.
Contact type gear sensor of the present invention, lower shell body arranges the gear water conservancy diversion rail of at least three concentrics, each bar gear water conservancy diversion rail is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, each bar gear water conservancy diversion rail connects corresponding gear signal contact pin on stitch respectively, gear water conservancy diversion rail is parallel insulation arrangement between two, and at least two the diversion section of gear water conservancy diversion rail has overlap region, there is insulator interval between each diversion section due to same gear water conservancy diversion rail and be electrically connected under insulator, when epitrochanterian gear spring contact touches the diversion section of a gear water conservancy diversion rail, the gear signal contact pin connecting this gear water conservancy diversion rail is just high level, during insulator when between the diversion section that epitrochanterian gear spring contact touches a gear water conservancy diversion rail, the gear signal contact pin connecting this gear water conservancy diversion rail is just low level, and have overlap region due to the diversion section of at least two gear water conservancy diversion rails, like this when rotor turns to a position around the described center of circle, each gear signal contact pin on the stitch be connected respectively with each bar gear water conservancy diversion rail can form different level state combinations, thus each gear positions information and transforming gear information can be represented with the level state assembly coding that each gear signal contact pin is formed, the level state combination that can be formed according to each gear signal contact pin is encoded, and when a gear changes to another gear, make described coding do twice bit conversion, to represent that corresponding gear positions information and transforming gear information are encoded.Contact type gear sensor of the present invention can not only detect gear positions information, but also transforming gear information is detected, can be that gear box control unit (TCU) carry out diagnosis and error correction provides foundation, improve the Security of driving, simultaneously compact dimensions.
Claims (4)
1. a contact type gear sensor, comprises lower shell body, rotor and stitch, it is characterized in that,
Lower shell body comprises the gear water conservancy diversion rail of at least three circular arcs, each bar gear water conservancy diversion rail concentric and the arrangement of parallel insulation gap, each bar gear water conservancy diversion rail is divided into one or more diversion section be electrically connected under insulator by insulator all respectively, wherein the diversion section of at least two gear water conservancy diversion rails has overlap region, point on arbitrary diversion section of an i.e. wherein gear water conservancy diversion rail connects with the described center of circle in the straight line formed, and includes the straight line of the diversion section through another gear water conservancy diversion rail;
Rotor comprises at least three gear spring contacts, each gear spring contact one_to_one corresponding is pressed together on corresponding gear water conservancy diversion rail respectively, and rotor rotates around the described center of circle;
Stitch comprises a signal power source contact pin and at least three gear signal contact pins, and signal power source contact pin is electrically connected each gear spring contact, and each gear signal contact pin one_to_one corresponding is electrically connected the diversion section of each gear water conservancy diversion rail corresponding respectively;
Described contact type gear sensor, each gear positions information and transforming gear information is represented with the level state assembly coding that each gear signal contact pin is formed, and when a gear changes to another gear, make described coding do twice bit conversion, to represent corresponding gear positions information and transforming gear information;
Gear box control unit carries out diagnosing and error correction according to corresponding gear positions information and transforming gear information.
2. contact type gear sensor according to claim 1, is characterized in that,
Lower shell body also comprises startup and the reverse gear water conservancy diversion rail of two circular arcs, article two, to start with reverse gear water conservancy diversion rail with each bar gear water conservancy diversion rail concentric and parallel insulation gap arrange, two start and reverse gear water conservancy diversion rail comprises startup contact-segment, the reverse gear contact-segment split by insulator respectively;
Rotor also comprises a startup and reverse gear elastic sheet metal, and startup and reverse gear elastic sheet metal are pressed together on two and start with on reverse gear water conservancy diversion rail;
Stitch also comprises two starting circuit contact pins, two reverse gear circuit contact pins, and two starting circuit contact pins connect two respectively and start the startup contact-segment with reverse gear water conservancy diversion rail, and two reverse gear circuit contact pins connect two respectively and start the reverse gear contact-segment with reverse gear water conservancy diversion rail.
3. contact type gear sensor according to claim 1 and 2, is characterized in that, also comprises a upper cover plate, and described rotor is arranged on upper cover plate and lower shell body fastens in the enclosed space of formation;
Upper cover plate comprises the signal power source water conservancy diversion rail of a circular arc, after upper cover plate and lower shell body fasten, and signal power source water conservancy diversion rail and gear water conservancy diversion rail concentric;
Lower shell body also comprises a metal elastic gonosome, and described metal elastic gonosome is pressed together on described signal power source water conservancy diversion rail;
Rotor also comprises a water conservancy diversion tinsel, a power supply spring contact, and described water conservancy diversion tinsel is with described power supply spring contact and the electrical connection of each gear spring contact, and power supply spring contact is pressed together on described signal power source water conservancy diversion rail;
Signal power source contact pin is with the metal elastic gonosome electrical connection on lower shell body.
4. contact type gear sensor according to claim 1, is characterized in that, described lower shell body has three gear water conservancy diversion rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010581680.2A CN102062210B (en) | 2010-12-09 | 2010-12-09 | Contact type gear sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010581680.2A CN102062210B (en) | 2010-12-09 | 2010-12-09 | Contact type gear sensor |
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| Publication Number | Publication Date |
|---|---|
| CN102062210A CN102062210A (en) | 2011-05-18 |
| CN102062210B true CN102062210B (en) | 2016-04-27 |
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| CN201010581680.2A Active CN102062210B (en) | 2010-12-09 | 2010-12-09 | Contact type gear sensor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103218974A (en) * | 2013-04-27 | 2013-07-24 | 上海三思电子工程有限公司 | LED (Light Emitting Diode) display module, display screen formed by splicing LED display modules, and changeable message sign |
| CN113108055B (en) * | 2021-04-15 | 2022-08-09 | 南京美均电子科技有限公司 | Coding type speed reducer parking control system |
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| US5561416A (en) * | 1995-05-01 | 1996-10-01 | Ford Motor Company | Position sensing apparatus |
| EP1077337A2 (en) * | 1999-08-18 | 2001-02-21 | FIAT AUTO S.p.A. | Gear selection device in an automatic transmission for motor vehicles |
| CN201407340Y (en) * | 2008-12-11 | 2010-02-17 | 联合汽车电子有限公司 | Gear sensor |
| CN202008369U (en) * | 2010-12-09 | 2011-10-12 | 联合汽车电子有限公司 | Contact type gear sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525768A (en) * | 1995-02-17 | 1996-06-11 | Texas Instruments Incorporated | Switch system for motor vehicle transmissions |
| JP3687303B2 (en) * | 1997-09-08 | 2005-08-24 | アイシン・エィ・ダブリュ株式会社 | Neutral start switch |
| JP3940778B2 (en) * | 1998-12-17 | 2007-07-04 | 本田技研工業株式会社 | Select lever position switch for automatic transmission |
| US6481274B2 (en) * | 1999-06-25 | 2002-11-19 | Honda Of America Manufacturing, Inc. | Position sensor setting and testing method |
| JP2003294134A (en) * | 2002-03-29 | 2003-10-15 | Jatco Ltd | Shift position detecting device of automatic transmission |
| US20050126322A1 (en) * | 2003-12-10 | 2005-06-16 | Denso Corporation | Automatic transmission control system with shift lever position sensor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5561416A (en) * | 1995-05-01 | 1996-10-01 | Ford Motor Company | Position sensing apparatus |
| EP1077337A2 (en) * | 1999-08-18 | 2001-02-21 | FIAT AUTO S.p.A. | Gear selection device in an automatic transmission for motor vehicles |
| CN201407340Y (en) * | 2008-12-11 | 2010-02-17 | 联合汽车电子有限公司 | Gear sensor |
| CN202008369U (en) * | 2010-12-09 | 2011-10-12 | 联合汽车电子有限公司 | Contact type gear sensor |
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| CN102062210A (en) | 2011-05-18 |
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