CN202182175U - Anti-errant-engagement and interchange oil way for D gear and R gear of automatic transmission - Google Patents
Anti-errant-engagement and interchange oil way for D gear and R gear of automatic transmission Download PDFInfo
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- CN202182175U CN202182175U CN2011202740341U CN201120274034U CN202182175U CN 202182175 U CN202182175 U CN 202182175U CN 2011202740341 U CN2011202740341 U CN 2011202740341U CN 201120274034 U CN201120274034 U CN 201120274034U CN 202182175 U CN202182175 U CN 202182175U
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- oil circuit
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- oil
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Abstract
The utility model discloses the anti-errant-engagement and interchange oil way for the D gear and the R gear of an automatic transmission, which comprises a multi-voltage oil way, an R gear oil way, a D gear oil way, a D gear and R gear interchange oil way and a hand-operated valve. The D gear and R gear interchange oil way is provided for the condition that the R gear is engaged by mistake while the D gear to be engaged is not engaged. A second solenoid valve and a second accumulator are sequentially connected in parallel with each other in the oil duct of the valve body of the multi-voltage oil way. The anti-errant-engagement and interchange oil way also comprises a mechanical control valve arranged in the oil ducts of the valve bodies of the original D gear oil way and the R gear oil way. The anti-errant-engagement and interchange oil way with an anti-errant-engagement and oil way interchange mechanism for the D gear and the R gear is provided as a safety measure for an automatic transmission and can prevent the occurrence of unnecessary accidents. Meanwhile, the maneuverability of the transmission is improved and the transmission is more humanized. The anti-errant-engagement and interchange oil way for the D gear and the R gear of an automatic transmission is suitable for the automatic transmission of an automobile.
Description
Technical field
The utility model belongs to automotive field, especially relates to a kind of automatic gearbox, and specifically a kind of automatic transmission D retaining and R keep off anti-error extension and exchange oil circuit.
Background technique
Along with fast development of society, automobile is more and more universal, and particularly the car of automatic catch has become popular main flow with advantages such as travelling comfort and operability; But have very big risk, especially the electrolyte type automatic transmission does not have the mechanism of anti-error extension and exchange between D retaining and the R retaining, and does not have the function that oil circuit exchanges the i.e. original operation of maintenance gear, makes the very big risk of existence in the driving procedure yet.Be specially:
1. working as car just keeps off at a high speed (greater than 7km/h at D; Promptly greater than the idling speed of a motor vehicle) go, mistake is suspended to the R retaining suddenly, oil circuit incision R retaining oil circuit; This moment, D retaining clutch was not thrown off fully; And car is also to overtake, and effect or the planetary pinion that will cause the planetary system locking to produce Emergency braking this moment are beaten tooth, and speed changer is caused damage.If the speed of a motor vehicle is very high, the risk that has an accident is just arranged.
2. when just keeping off at R, car goes; Suddenly mistake is suspended to the D retaining, oil circuit incision D retaining oil circuit, and this moment, R retaining clutch was thrown off and car is also going backward fully; Effect or the planetary pinion that will cause the planetary system locking to produce Emergency braking this moment are beaten tooth, and speed changer is caused damage.If the speed of a motor vehicle is very high, the risk that has an accident is just arranged.
The patent No. of Toyota Motor Corporation rep. is the Chinese utility model patent of 200510112866.2 " hydraulic control device that is used for automatic transmission "; The hydraulic control device that gear implements that can suppress rapidly that provides comprises pressure regulator valve, and this pressure regulator valve comprises first control pressure chamber and feedback pressure chamber.When the travelling speed of advancing of vehicle was reservation speed, pressure regulator valve was set to the oil pressure dissengaged positions, and changing valve is set to the feedback pressure output state.Therefore, when the position of in process to overtake, reversing gear is selected by error, suppress to supply to the oil pressure of frictional engagement element, thus the enforcement that inhibition is reversed gear.
The model utility content
The technical problem that the utility model will solve; Providing a kind of automatic transmission D retaining and R keeps off anti-error extension and exchanges oil circuit; Between R retaining and D retaining, have anti-error extension and oil circuit interchange mechanism, increase a kind of safety measure, prevent the generation of unnecessary accident to automatic transmission; And make the speed changer operability strengthen hommization more.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is:
A kind of automatic transmission D retaining and R keep off anti-error extension and exchange oil circuit, comprise pressing oil circuit, R retaining oil circuit, D to keep off oil circuit fully, and 1. it is pressing parallelly connected successively second solenoid valve and second accumulator on the valve body oil duct of oil circuit fully; 2. it is provided with mechanically controlled valve on the valve body oil duct of oil circuit D retaining and R retaining oil circuit.
As specializing of the utility model structure; It comprises that also D retaining and R retaining when D retaining mistake is suspended to the R retaining exchange oil circuit, hand-operated valve; The spool of this mechanically controlled valve links with R retaining oil circuit, D retaining oil circuit respectively; D retaining and R retaining when D retaining mistake is suspended to the R retaining exchange oil circuit; The conducting that the oil of the working connection hand-operated valve of flowing through, R retaining oil circuit, D retaining oil circuit D retaining and the R retaining when the control and regulation of hand-operated valve can be suspended to the R retaining with D retaining mistake exchanges oil circuit;
R retaining oil circuit, D retaining oil circuit, the D retaining when D retaining mistake is suspended to the R retaining and R retaining exchange between the spool of spool and manually operated valve that oil circuit also is connected to mechanically controlled valve respectively;
The two ends of said mechanically controlled valve also are respectively equipped with return spring.
These two return springs are positioned at the two ends of mechanically controlled valve respectively with locating stud, the spool move left and right extrusion spring of mechanically controlled valve can be fixed on the spool of mechanically controlled valve on the needed position according to the size of oil duct pressure and the rigidity of spring.
The utility model is on existing oil circuit layout basis, to have increased by second solenoid valve, mechanically controlled valve.When car keeps off fast state (more than or equal to idling speed of a motor vehicle 7km/h) when operation at D, if manually operated valve is suspended to the R retaining from D retaining mistake suddenly, this moment, TCU signaled to second solenoid valve; Through controlling the variation of second electromagnetic valve current; The control oil channel oil pressure is increased, the mechanically controlled valve between D retaining and the R retaining is moved to D retaining end, when R retaining oil circuit is blocked; ATF oil this moment (a kind of transmission oil) can exchange oil circuit from D retaining and R retaining and lead to R and keep off oil circuit that oil circuit the tells spool through mechanically controlled valve; Flow to D retaining oil circuit, continue to carry out the order of D retaining, can have buzzer siren alarm client that mistake has taken place simultaneously and hang; When moving at the R retaining; Press the oil pressure of oil circuit fully through solenoid valve (control D retaining clutch combines and the solenoid valve that separates in the existing oil circuit) control equally; The adjusting mechanically controlled valve is moved to the left; Make it when mistake is suspended to the D retaining, can also continue to carry out the order of R retaining, can have buzzer siren alarm client that mistake has taken place simultaneously and hang; When all solenoid valves all under the invalid state, can get into limp-home mode.The utility model can prevent the generation of unnecessary accident, and the speed changer operability is strengthened.
Owing to adopted above-mentioned technological scheme, the acquisition of technology progress of the utility model institute is:
(1) adopts the size of current that changes solenoid valve to control the move left and right of D retaining and R retaining exchange oil circuit mechanically controlled valve, realized that electrolyte type automatic transmission D retaining and R retaining running process exchange, avoided mistake to be linked with next risk, guarantee personal safety as well as the property safety.
(2) the accurate control through solenoid valve can realize accurately that gear mistake takes place hangs and realize the function that oil circuit exchanges and gear keeps.
The utility model is applicable to automatic gearbox, as anti-error extension and exchange oil circuit between D retaining and R retaining.
The utility model below will combine Figure of description and specific embodiment to do further explain.
Description of drawings
Fig. 1 manually is controlled at the asphalt principle figure of N retaining for the utility model embodiment;
Fig. 2 is controlled at the asphalt principle figure of D retaining for the utility model embodiment manually operated valve;
Fig. 3 manually is controlled at the asphalt principle figure of R retaining for the utility model embodiment;
Fig. 4 is suspended to the asphalt principle figure of R retaining for the utility model embodiment D retaining mistake;
Fig. 5 is suspended to the asphalt principle figure of D retaining for the utility model embodiment R retaining mistake.
Among the figure: 1-manually operated valve, 2-R keeps off oil circuit, and 3-D keeps off oil circuit, 4--mechanically controlled valve; 5,6--return spring, 7-the second solenoid valve, 8-solenoid valve; 9-accumulator, 10-the second accumulator, 11-control oil channel; D retaining and R retaining when 12-D retaining mistake is suspended to the R retaining exchange oil circuit, 13-working connection, and 14-fully press oil circuit; Arrow is represented the flow direction of oil among the figure.
Embodiment
Embodiment
Present embodiment is that a kind of automatic transmission D retaining and R keep off anti-error extension and exchange oil circuit; Comprise oil circuit composition of the prior art, D retaining and R retaining when keeping off as pressing oil circuit 14, R retaining oil circuit 2, D retaining oil circuit 3, D retaining mistake to be suspended to R fully exchange oil circuit 12, manually operated valve 1, control oil channel 11.The difference of itself and existing technology is:
1. be parallel with second solenoid valve 7 and second accumulator 10 on the valve body oil duct of oil circuit 14 successively pressing fully;
2. it also comprises a mechanically controlled valve 4, and this mechanically controlled valve 4 is installed on the valve body oil duct of former oil circuit D retaining and R retaining oil circuit.D retaining when the spool of mechanically controlled valve 4 is suspended to the R retaining with R retaining oil circuit 2, D retaining oil circuit 3 and D retaining mistake respectively and R retaining exchange oil circuit 12 and link; The oil of working connection 13 manually operated valve 1 of flowing through; The conducting that D retaining when being suspended to the R retaining through manually operated valve 1 regulating and controlling R retaining oil circuit 2, D retaining oil circuit 3 and D retaining mistake and R retaining exchange oil circuit 12, R retaining oil circuit, D retaining oil circuit, the D retaining when D retaining mistake is suspended to the R retaining and R retaining are exchanged between the spool of spool and manually operated valve 1 that oil circuit 12 also is connected in mechanically controlled valve 4 respectively.
The two ends of mechanically controlled valve 4 also are respectively equipped with return spring 5,6, and they are positioned at the two ends of mechanically controlled valve 4 through locating stud.The left side of the spool of the mechanically controlled valve 4/extruding return spring 5/6 that moves right can be fixed on the spool of mechanically controlled valve 4 on the needed position according to the size of oil duct pressure and the rigidity of spring 5,6.
In the present embodiment:
Manually operated valve 1---carry out the mechanically controlled valve that gear is selected;
R keeps off oil circuit 2---dash the oil circuit of oily and draining to the clutch and the break of R retaining;
D keeps off oil circuit 3---dash the oil circuit of oily and draining to the clutch and the break of D retaining.
Mechanically controlled valve 4---at D retaining and R retaining mistake taking place can conducting when hanging move the D retaining of oil circuit originally and keep off exchange oil circuit mechanically controlled valve with R.
Return spring 5---make D retaining and R retaining exchange the playback of oil circuit mechanically controlled valve;
Return spring 6---make D retaining and R retaining exchange the playback of oil circuit mechanically controlled valve;
Second solenoid valve 7---when D retaining mistake was suspended to the R retaining, it can control the D retaining and the R retaining exchanges the oil circuit mechanically controlled valve to right travel, so that conducting D retaining oil circuit realizes continuing to carry out the order of D retaining;
Solenoid valve 8---itself be exactly the solenoid valve of controlling the D retaining; By mistake be suspended to the D retaining at AT speed changer car when going in R retaining high speed (more than or equal to 10km/h) suddenly; It can control the D retaining and R retaining exchange oil circuit mechanically controlled valve goes left; So that conducting R keeps off oil circuit, realize continuing to carry out the order of R retaining;
Control oil channel 11---control the move left and right of regulating D retaining and R retaining exchange oil circuit mechanically controlled valve 4 jointly through the solenoid valve 8 and second solenoid valve 7, reach oil circuit exchange and the constant function of maintenance gear;
R retaining exchanges oil circuit 12 with the D retaining---car the D retaining at a high speed (more than or equal to 7km/h, promptly more than or equal to the idling speed of a motor vehicle) when going suddenly mistake be suspended to the R retaining, exchange oil circuit mechanically controlled valve 4 through this oil circuit and D retaining and R retaining and control conducting D to keep off oil circuit jointly.
(1) when the AT automobile is in neutral gear position, automatic catch transmission oil line structure is as shown in Figure 1, and manually operated valve 1 is controlled at the N retaining, and motor is in idling conditions.
(2) when the AT automobile normal running when R keeps off; The automatic transmission oil channel structures is as shown in Figure 3; Manually operated valve 1 is controlled at the R retaining; This moment, second solenoid valve and solenoid valve 8 all were in the high state (because pressure own is in high state) of electric current, pressed oil circuit 14 to be in the pressure release state fully, and making D retaining and R retaining exchange oil circuit mechanically controlled valve 4 control oil channel under return spring 5,6 actings in conjunction is normal working.
(3) when the AT automobile in R retaining running process, mistake is suspended to the D retaining suddenly, manually operated valve 1 passes to shift sensor with signal, shift sensor passes to TCU with this signal again, TCU judges whether to carry out oil circuit according to current vehicle speed again and exchanges.Can have this moment buzzer siren prompting driver that mistake has taken place hangs.
When the speed of a motor vehicle was 0, representative was not also gone, and mistake is hung can not produce risk.
When the speed of a motor vehicle greater than 0 the time, the driver is suddenly when R retaining mistake is hung the D retaining, if do not take oil circuit to exchange and keep original operation gear, the risk that will bring accident to take place.Therefore, take oil circuit to exchange, continue to carry out the order of R retaining, guarantee that the driver can safe driving.
The control procedure that concrete mistake extension is taken measures is following:
TCU passes to solenoid valve 8 with control signal; Control its size of current, mechanically controlled valve 4 left side pressure are increased, mechanically controlled valve 4 is moved to the left rapidly; Up to conducting R retaining oil circuit 4; Second solenoid valve 7 cooperates solenoid valve 8 assurance mechanically controlled valves 4 just in time to be in and can to keep off oil circuit 4 by conducting R simultaneously, has realized the function that oil circuit exchanges, and mistake is hung rear oil duct and flowed to as shown in Figure 4.
The flow chart of the control structure of TCU executive routine when Fig. 5 is suspended to the D retaining for automatic transmission R retaining mistake.
(4) when the AT automobile normal running when D keeps off; The automatic transmission oil channel structures is as shown in Figure 2; Manually operated valve 1 is controlled at the D retaining; Second solenoid valve 7 and solenoid valve 8 electric currents all are in high state (because pressure own is in the state of growing tall), press oil circuit 14 to be in the pressure release state fully, and making mechanically controlled valve 4 control oil channel under return spring 5,6 actings in conjunction is normal working.
(5) when the AT automobile in D retaining running process, mistake is suspended to the R retaining suddenly, manually operated valve 1 passes to shift sensor with signal, shift sensor passes to TCU with this signal again, TCU judges whether to carry out oil circuit according to current vehicle speed again and exchanges.Can have buzzer siren prompting driver that mistake has taken place here hangs.
When the speed of a motor vehicle during more than or equal to 7km/h (the idling speed of a motor vehicle), the driver is suspended to the R retaining from the D retaining is errorless suddenly, if do not take oil circuit to exchange and keep original operation gear, the risk that will bring accident to take place.Therefore, take oil circuit to exchange, continue to carry out the order of D retaining, guarantee that the driver can safe driving.The conversion oil circuit flows to as shown in Figure 4, and concrete control procedure is following:
TCU passes to second solenoid valve 7 with control signal; Control its size of current; Mechanically controlled valve 4 right atrial pressures are increased, mechanically controlled valve 4 is moved right rapidly, up to conducting D retaining oil circuit 3; Second solenoid valve 7 cooperates solenoid valve 8 assurance mechanically controlled valves 4 just in time to be in and can to keep off oil circuit 3 by conducting D simultaneously, has realized the function that oil circuit exchanges.
Claims (3)
1. automatic transmission D retaining keeps off anti-error extension and exchanges oil circuit with R, comprise pressing fully that oil circuit, R keep off oil circuit, D keeps off oil circuit,
It is characterized in that:1. it is pressing parallelly connected successively second solenoid valve and second accumulator on the valve body oil duct of oil circuit fully; 2. it is provided with mechanically controlled valve on the valve body oil duct of D retaining oil circuit and R retaining oil circuit.
2. automatic transmission D retaining according to claim 1 and R keep off anti-error extension and exchange oil circuit,
It is characterized in that:It comprises that also D retaining and R retaining when D retaining mistake is suspended to the R retaining exchange oil circuit, manually operated valve; The spool of this mechanically controlled valve links with R retaining oil circuit, D retaining oil circuit respectively; D retaining and R retaining when D retaining mistake is suspended to the R retaining exchange oil circuit; The conducting that the oil of the working connection manually operated valve of flowing through, R retaining oil circuit, D retaining oil circuit D retaining and the R retaining when the regulating and controlling of manually operated valve can be suspended to the R retaining with D retaining mistake exchanges oil circuit;
R retaining oil circuit, D retaining oil circuit, the D retaining when D retaining mistake is suspended to the R retaining and R retaining exchange between the spool of spool and manually operated valve that oil circuit also is connected to mechanically controlled valve respectively.
3. automatic transmission D retaining according to claim 1 and R keep off anti-error extension and exchange oil circuit,
It is characterized in that:The two ends of said mechanically controlled valve also are respectively equipped with return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202740341U CN202182175U (en) | 2011-07-31 | 2011-07-31 | Anti-errant-engagement and interchange oil way for D gear and R gear of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202740341U CN202182175U (en) | 2011-07-31 | 2011-07-31 | Anti-errant-engagement and interchange oil way for D gear and R gear of automatic transmission |
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| Publication Number | Publication Date |
|---|---|
| CN202182175U true CN202182175U (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202740341U Expired - Fee Related CN202182175U (en) | 2011-07-31 | 2011-07-31 | Anti-errant-engagement and interchange oil way for D gear and R gear of automatic transmission |
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|---|---|
| CN (1) | CN202182175U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818014A (en) * | 2012-08-31 | 2012-12-12 | 长城汽车股份有限公司 | Automatic gearbox control oil path for automobile |
| CN103671897A (en) * | 2013-12-25 | 2014-03-26 | 盛瑞传动股份有限公司 | Safety control device in automatic transmission hydraulic control system |
| CN108194630A (en) * | 2017-12-11 | 2018-06-22 | 吉利汽车研究院（宁波）有限公司 | Process for gear, system and automobile |
-
2011
- 2011-07-31 CN CN2011202740341U patent/CN202182175U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818014A (en) * | 2012-08-31 | 2012-12-12 | 长城汽车股份有限公司 | Automatic gearbox control oil path for automobile |
| CN102818014B (en) * | 2012-08-31 | 2015-07-01 | 长城汽车股份有限公司 | Automatic gearbox control oil path for automobile |
| CN103671897A (en) * | 2013-12-25 | 2014-03-26 | 盛瑞传动股份有限公司 | Safety control device in automatic transmission hydraulic control system |
| CN103671897B (en) * | 2013-12-25 | 2015-11-18 | 盛瑞传动股份有限公司 | Safety control in a kind of hydraulic control system of automatic speed changer |
| CN108194630A (en) * | 2017-12-11 | 2018-06-22 | 吉利汽车研究院（宁波）有限公司 | Process for gear, system and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20170731 |