JPH02256952A - Shift command device for automatic transmission - Google Patents

Abstract

PURPOSE:To obviate the necessity for confirming a control part by a driver and hence improve the controllability by generating a command of non-agreement from a correction command means to a required device when the non-agreement is judged between a shift command and a shift range. CONSTITUTION:A shift controller 5 controls an actuator 7 being based on a shift command SA from a control part 1 in a manner wherein a position of a shift range SR in an automatic transmission 202, detected in a shift range detecting means 9, agrees with the shift command SA. When a judging means JM detects the shift range SR not to agree with the shift command SA due to a certain cause, a correction command means CS generates a signal of correcting non-agreement to the controller 5 controlling action of a required device. Thus, the necessity for confirming action positively performed by a driver himself is eliminated and operation can be simplified by easily correcting the non-agreement.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a shift instruction device for an automatic transmission in which a shift range is electrically changed by operating a select switch.

(Prior Art) As a conventional shift instruction device, for example, Japanese Patent Laid-Open No. 1986-
There is a device similar to that described in 8549 as shown in FIG.

The shift range of an automatic transmission 202 directly connected to an engine 201 is changed according to the rotational position of a manual lever 203.

On the other hand, the operating section 1 located in the driver's seat has a no-king:
P1 Reverse: R1 Neutral: N1 Drive: D
12th speed; 2.1st speed: Select switches 3 for instructing the shift range of 1st class are arranged, and by selecting and operating these switches, the corresponding shift instruction signal SA force ( Emitted.

Upon receiving this shift instruction, the shift controller 5 issues an operation instruction signal SB, and the electric actuator 7, such as a steering wheel motor, responds to the operation instruction signal SB and rotates the manual lever 203 to the instructed shift position. This rotational position is detected by the inhibitor switch 9 as shift range detection means, and as a result, a shift range detection signal SR is fed back to the shift controller 5.

Further, signals from the throttle opening sensor 205, vehicle speed sensor 207, brake operation sensor 209, etc. of the engine 2.degree. 1 are input to the shift controller 5 and used for shift control. The ignition switch 11 of the engine 201 also serves as a power switch for the control system controlled by the shift controller 5, and when the engine key is inserted and turned to the ignition circuit ON position, the battery
Power is supplied to the shift controller 5 from the shift controller 3.

(Problem to be Solved by the Invention) The select switch 3 is configured, for example, by a push button switch, and its connected state is mechanically maintained when a specific shift position, for example P, is pressed. There is. Therefore, when the driver presses P to change the shift position of the automatic transmission 202 to P, turns off the ignition switch 11, and attempts to get out of the vehicle, the driver may not be aware of it and for some reason shift the shift position of the automatic transmission 202 to P, for example select switch 3 in D. If is pressed, the position D of the select switch 3 and the actual position P of the automatic transmission 202 will differ.

Therefore, the occupant must confirm the operating position of the select switch 3 before starting the engine by operating a key after getting on the vehicle, which may make the operation complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shift instruction device for an automatic transmission that can correct a discrepancy between a shift instruction and a shift range without the driver having to actively confirm the shift instruction when riding the vehicle.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides a shift system that receives a shift command SA from an operating section 1 and issues a corresponding operation command SB, as shown in FIG. A controller 5, an actuator 7 for switching the shift range SR of the automatic transmission 202 based on the operation instruction SB, a shift range detection means 9 for detecting the switched shift range SR, and a shift range SR and a shift instruction SA. The configuration includes a determining means JM that determines whether the information matches or does not match, and a correction instructing means cS that issues an instruction to correct the discrepancy to a required device when the determining means JM outputs a signal indicating a discrepancy.

(Operation) When the shift instruction SA and the shift range SR do not match, the correction instruction means C8 issues an instruction to correct the mismatch. Therefore, there is no need for the driver to actively check the operating section 1 himself, and the operation becomes significantly easier.

(Example) The present invention will be described in detail below.

As shown in FIG. 2, the shift instruction device 11 of this embodiment includes an instruction display means 71 integrally provided with an operation means 15 capable of moving in the vertical direction.

Operating means 1 as the operating unit 1 of the shift instruction device 11
5 is attached to the steering wheel 211 and arranged at an appropriate distance in front of the steering wheel 211, and is compactly assembled so that the driver can see the entire part through the wheel rim 214 above the spokes 213 of the wheel 211. ing.

Further, as shown in FIG. 3, the operating means 15 consists of a base 17 fastened to the steering column and an operating body 21. The casing 23, which forms the base of the operating body 21, has an abbreviated shape, with the lower side facing sideways to form a handle 25, and the other side having a slider 27 fixed thereto. The slider 27 is provided with a headed rail 29 that extends in the vertical direction and projects toward the base 17.
A rail groove 31 formed at 7 fits and slidably receives this headed rail 29.

As a result, the operating body 21 is mounted so that it can be moved vertically in parallel. And base 17 and slider 2
A positioning means 35 is constituted between the positioning means 7 and the positioning means 35.

The positioning means 35 is provided on the side surface of the base 17 in the vertical direction (
1 vertical direction, 3 figure 3 perpendicular direction) - a plurality of notch holes 3 formed in a row (number corresponding to the shift position)
7 and a check ball 41 located on the slider 27 side and urged toward the row of notch holes 37 by a spring 39. It is formed in the corresponding part.

In this example, the relationship between the notch holes 37 and each of the above positions is determined so that they are arranged at equal pitches (hereinafter, this pitch is referred to as the operation pitch). Therefore, when the operation body 21 is moved up and down, the check ball 41 is It elastically engages with the notch hole 37 at every operation pitch and is positioned step by step with a sense of moderation.

The handle 25 of the operating body 21 is equipped with a pressure sensor (not shown), and a grip signal I (A is input to the control unit 15 as the shift controller 5) to detect that the driver has gripped the handle 25. It looks like this.

Further, the operating means 15 operates at each shift position P, R,
Select switch contact 3 shown in FIG. 4 corresponding to N and D
a, 3b, 3c, and 3d, and when the operating body 21 is positioned at the highest position, the select switch contact 3a of P is closed, and the shift instruction signal SA is inputted to the control unit 15. ing. And operation body 2
1 sequentially downward and positioned in the notch holes 37 corresponding to R, N, and D, any of the select switch contacts 3b, 3c, and 3d for R, N, and D will be closed in the same manner as above, and the shift instruction will be issued. Signal SA is also sent to control unit 1.
5 is entered.

Next, the display section 73 of the instruction display means 71 is displayed on the casing 2.
A display board 74 is provided on the entire surface of the display panel 3, and lamps 75a to 75d shown in FIG. 4 are arranged behind the display board 74. The display board 74 is made of translucent resin or the like and is divided into four sections arranged in the vertical direction, and these sections are labeled P, R, and N from the top.

Position symbols are displayed in the order of D, and the lamp 7 above
5a to 75b are arranged for each of these sections.

Further, in this embodiment, the pitch of each section is equal to the operation pitch. And each shift position P, R,
N, D select switch contacts 3a, 3b, 3c, 3d
When either of the control unit 15 is closed, the control unit 15
In response to the instruction, the lamp at the corresponding position is lit, thereby brightly illuminating the corresponding section of the display board 74 and highlighting the position symbol there.

The control unit 15 is composed of, for example, a microcomputer, and in this embodiment constitutes a judgment means JM and a correction instruction means C8. Based on the shift instruction signal SA, the control unit 15 sends an operation instruction signal SB to an automatic transmission 202 directly connected to the engine E.
is emitted to the actuator 7 of. The actuator 7 responds to the operation instruction signal SB and rotates the manual lever 203 to the instructed shift position.

This rotational position is detected by an inhibitor switch 9 serving as shift range detection means, and as a result, a shift range detection signal SR is fed back to the control unit 15.

On the other hand, in the vicinity of the operating means 15, the instrument is provided with a detection display means 81 as shown in FIG. This detection display means 81 includes display bodies 83a to 83d slightly protruding from the instrument as shown in FIG. 5, and detection lamps 85a to 85d shown in FIG. 4 arranged inside the display bodies 83a to 83d. Correction instruction lamp 87a
~87d.

The display bodies 83a to 83d are made of translucent resin or the like.
As shown in the figure, it is divided into four sections arranged in the vertical direction, and these sections have P from the top.

Position symbols are displayed in the order of R, N, and D, and the detection lamps 85a to 85d and correction instruction lamps 87a to 8
7d are arranged for each division.

Inhibitor switch 9 is in shift position P.

Switch contacts 9a, 9b, 9c, 9 corresponding to R, N, D
When the automatic transmission 202 is shifted, the shift position is detected by closing any of the contacts 9a to 9d of the inhibitor switch 9, and the corresponding detection lamps 85a to 85d are lit. ,
The shift position of the automatic transmission 202 is displayed. When there is a difference between the shift range signal SR and the shift instruction signal SA, the control unit 15 sends a correction instruction signal C.
B is issued, and one of the correction instruction lamps 87a to 87d corresponding to the shift range signal SR lights up.

In addition, the correction instruction signal CB is the buzzer 8 shown in FIGS. 2 and 4.
5, and the buzzer 85 is designed to issue an alarm for corrective instructions.

Next, the control operation of the shift indicating device of the present invention will be further explained using the flowchart of FIG.

This flowchart is executed by turning on the key switch when a key is inserted into the key cylinder.

Next, it is determined whether the ignition switch is ON (step S1), and if the ignition switch is ON, it is then determined whether the automatic transmission 202 is in shift position P (step S2). If it is P, it is determined whether the handle 25 of the operating body 21 is being grasped (step S3).

If the handle 25 is held, it is determined that the shift operation from the P position is normal, and this flow ends.

If the handle 25 is not gripped, it is then determined whether the operating body 21 is in the P position (step S4).

If the operating body 21 is not in the P position, the control unit 15 issues a correction instruction signal CB to the buzzer 85 and the detection display means 81 (step S5), and the buzzer 8
5 alerts the driver that the shift range of the automatic transmission 202 and the shift instruction of the operating body 21 are different.

As a result, the driver can know the difference without having to actively check the vehicle when riding the vehicle, and can properly correct the position of the operating body 21. At the same time, any one of the correction instruction lamps 87a to 87d of the detection and display means 81 lights up corresponding to the actual shift range of the automatic transmission 202 to notify the user of an abnormality in the operating body 21. for example,
After the automatic transmission 202 is shifted to the P position by a shift instruction from the operating body 21 and the ignition is turned off by key operation, if the operating body 21 moves to the lever D position for some reason, the next time you get on the vehicle, When the ignition is turned on by key operation, the indicator lamp 75D corresponding to the D position lights up and the corresponding display plate 74
shine brightly.

At the same time, since the automatic transmission 202 is in the P position, the contact 9a of the inhibitor switch 9 is closed, and the detection display means 81
The detection lamp 85a lights up and the correction instruction lamp 8
The difference can be visually notified to the driver by, for example, flashing 7a. Therefore, the driver can immediately operate the operating body 21 to the P position.

The alarm from the buzzer 85 continues for 11 seconds (for example, 0.2 seconds) (step S6), and then it is determined whether the operating body 21 has been changed to the P position (step S7).

If the operating body 21 is not at the P position, the operation instruction signal SB becomes the P position signal according to the instruction from the control unit 15 regardless of the shift instruction signal SA (step S8).
. Therefore, the automatic transmission 202 is maintained at the P position, and the operating body 2
1 is operated to the P position, the vehicle can be kept in a stopped state regardless of the position of the operating body 21.

Note that when the handle 25 is held and operated, the driver is consciously operating it, and depending on the operating position, one of the select switch contacts 3a to 3d of P, R, N, and D is closed. Corresponding indicator lamps 75a to 7
5d lights up, and one of the display boards 74 is brightly illuminated to display the designated position.

Further, when any of the select switch contacts 3a to 3d closes, the shift instruction signal SA is input to the control unit 15, and the operation instruction signal SB is output to the actuator tough.

Actuator 7 operates a manual valve via manual lever 203 to shift automatic transmission 202 to a shift position according to operation instruction signal SB.

This shift position is detected by closing any of the corresponding switch contacts 9a to 9d of the inhibitor switch 9, and any one of the corresponding detection lamps 85a to 85d lights up, and any one of the display bodies 83a to 83d is brightly illuminated. The shift position of the automatic transmission 202 is displayed.

Next, as determined in step S2, the automatic transmission 202 is set to P.
If not, it is determined whether the N position is present (step S9).

Next, it is determined whether the handle 25 of the operating body 21 is being gripped (step 510), and if it is not being gripped, step Sll similar to steps s4 to s8 is performed.
Step S13 is then executed.

Similarly to the above, when the shift position of the automatic transmission 202 is at R and the operating body 21 is at a position other than R, the driver is notified by flashing the correction instruction lamp 87b for 12 seconds (for example, 1.0 seconds) or by a buzzer alarm. Notification of discrepancies (step 5)
12), operation instruction signal S regardless of shift instruction signal SA
A signal of R is issued as B (step 515).

Therefore, after the automatic transmission 202 is shifted to the R side,
Even if the operating body 21 moves to another position for some reason without the driver's knowledge, the N position of the automatic transmission 202 is maintained, improving safety.

Further, the operator is informed by the alarm that the operating position of the operating body 21 and the shift position of the automatic transmission 202 are different, and can properly correct the operating body 21 to the N position. Also,
Even if a rear collision occurs when driving backwards and the operating body 21 moves to a position other than R due to the impact, the automatic transmission 202 is set to N.
Position is maintained and safety is improved.

If it is determined in step SIO that the handle 25 is being held, then it is determined whether the vehicle is running (step 516). If the vehicle is traveling backwards, steps Sll to S15 are executed. Therefore, even if the driver accidentally moves the operating body 21 to another position while driving backwards, a warning will be issued in the same way as described above (step 5).
12), the automatic transmission 202 is held at the N position (step 515). Therefore, safety is significantly improved.

If the vehicle is stopped (step 516 NO), this flowchart ends, and the shift of the automatic transmission 202 can be changed by operating the operating body 21.

If it is determined in step S9 that the automatic transmission 202 is not in the N position, then it is determined whether the automatic transmission 202 is in the N position (step 517).

If it is in the N position, steps 818 to S21 similar to steps s3 to S8 are executed, and if the position of the operating body 21 and the shift position of the automatic transmission 2°2 are different, the process is continued for 13 seconds (for example, 095 seconds). An alarm is issued (step S20..521), and the automatic transmission 202 is held at the N position (step 523).

If the determination in step S17 is not the N position, the automatic transmission 202 has been shifted to the D position. At this time, steps S24 to S27, which are similar to steps S10 to S16, are executed. Therefore, if the operating body 21 moves to another position for some reason without the driver noticing after a shift operation using the operating body 21, it will take T4 seconds (
2,.

A warning is issued for 2 seconds (step S26, 527), and the automatic transmission 202 is maintained at the D position (step 529). Therefore, the position of the operating body 21 can be properly corrected while the automatic transmission 2.degree. 2 maintains the D position. Furthermore, even if the operating body 21 is moved to the R position or the like due to a frontal collision of the vehicle, the automatic transmission 202 is maintained at the D position, thereby preventing the vehicle from traveling backward at the same time as a full-on collision. Furthermore, even if the driver accidentally operates the operating body 21 from the D position to the N position while driving, a warning is issued after the determination in step S30 (step 526), and the automatic transmission 202 is maintained at the D position ( step 829). Therefore, the driver can directly adjust the operating body 21 to the D position, and safety is significantly improved.

If the vehicle is not running (step 530), the operating body 2
A normal gear shifting operation can be performed by operation 1.

Note that the driver can easily operate the operating body 21 by simply moving one hand from the steering wheel 211 to the handle 25 immediately in front of the steering wheel 211. Furthermore, the instruction display means 71 and the detection display means 81 can be visually confirmed by simply shifting the line of sight slightly toward the spoke 213 side of the steering wheel 211, and at this time, only the section where the corresponding position symbol is displayed is brightly illuminated. Therefore, visual recognition can be performed more clearly and in a shorter time. Further, the visual recognition of the instruction display means 71, etc. is almost the same as the visual recognition operation of meters, and visibility is improved.

Furthermore, even if the operating body 21 is made large to some extent, it will not obstruct the visibility of switches such as radio switches. For this reason, the instruction display section 73 can be provided on the operating body 21, and the display section 73 can be viewed while operating the operating body 21, thereby significantly improving operability. Therefore, the shift operation becomes extremely easy and the level of fatigue is significantly reduced.

Note that if the operating body 21 is operated by rotating around the steering column, the posture of the operating body 21 will become unstable, such as tilting depending on the operating position, but in this embodiment, the operation is performed by vertically moving in parallel. The posture of the body 21 is stable regardless of the operating position, and visual recognition can be made without any difficulty even in a narrow range inside the wheel rim 214 of the steering wheel 211. However, the operating body 21 can be operated by rotating around the steering column, or may be configured so that it can be operated by parallel movement in the front, rear, left, and right directions. The operating body 21 can also be configured with a push button or the like provided on an instrument panel.

Further, the alarm times T, , T2. T, . . . T4 can also all be equal.

When the shift position of the operating body 21 and the shift position of the transmission 202 are different, the select switch 3
It is also possible to forcibly close any one of a to 3d in accordance with any closed contact 9a to 9b of the inhibitor switch 9. It is also possible to provide the operating body 21 with a motor or the like so that the operating body 21 is forcibly moved in accordance with the shift position of the automatic transmission 202.

[Effects of the Invention] As is clear from the above, according to the configuration of the present invention, when there is a discrepancy between the shift range and the shift instruction, an instruction to correct the discrepancy is issued to the required device, so the driver himself or herself can actively confirm the discrepancy. No action is required and discrepancies can be easily corrected.

Therefore, the operation is simplified and the operability is significantly improved.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the present invention, Fig. 2 is a block diagram of an embodiment of the present invention, Fig. 3 is a sectional view of the operating body 21, Fig. 4 is a circuit block diagram, and Fig. 5 is a detection display. A perspective view of the means, FIG. 6 is a flowchart, and FIG. 7 is a configuration diagram of a conventional example. 1... Operation unit 5... Shift controller 7
...Actuator 9...Shift range detection means 202...Automatic transmission

Claims (1)

[Claims] A shift controller that receives a shift instruction from an operation unit and issues a corresponding operation instruction; an actuator that switches the shift range of the automatic transmission in response to the operation instruction; and a shift range detection means that detects the switched shift range. , match between shift range and shift instruction,
A shift instruction device for an automatic transmission comprising a judgment means for judging a mismatch, and a correction instruction means for issuing an instruction to correct the mismatch when the judgment means outputs a signal of mismatch.