JP2003034159A - Shift control device for transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shift control device for transmission capable of improving shift operability by facilitating the shift operation in the use of either a first shift device or a second shift device. SOLUTION: The first shift device 22 for switching the shift position of an automatic transmission and the second shift device 26 for similarly switching the shift position of the automatic transmission are provided within a cabin 18. The second shift device 26 is set on a driver's seat door 24. The second shift device 26 switches the shift position of the automatic transmission by electrically detecting the shift operation of a shift lever 31 and driving an actuator on the basis of the shift detection signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift control device for a transmission in which a shift position or a gear ratio of a transmission mounted on a vehicle can be electrically controlled.

[0002]

2. Description of the Related Art In an automatic transmission for a vehicle, switching of shift positions such as P (parking), R (reverse), N (neutral) or D (drive) is linked to a range switching valve (manual valve). This is performed by operating a shift lever mechanically directly connected via a wire cable or the like. In such a shift device, since the manual valve is switched using the lever action of the shift lever, a shift lever having a predetermined size or more is required to reduce the operation force of the shift lever, which hinders downsizing of the shift shift device. In addition, the arrangement position of the shift device is limited.

For the purpose of reducing the operating force and downsizing of the shift device, the shift detection sensor electrically detects the operating position of the shift lever of the shift device, and shifts based on the detection signal. A so-called shift-by-wire system shift control device has been proposed in which a plurality of shift positions of an automatic transmission are switched by driving a motor for driving and switching a manual valve of the automatic transmission. In the shift device of such a shift control device, since the manual valve does not have to be switched by the operating force of the shift lever, the size of the shift lever can be shortened, the shift device can be downsized, and the shift device can be downsized. The device can be located anywhere in the passenger compartment.

[0004]

In a recent vehicle, two such shift devices are prepared in the passenger compartment, and both shift devices are arranged at different positions in the passenger compartment, and either shift device is used. It is desired that the shift operation be performed freely.

However, when two such shift-by-wire type shift devices are provided, if the shift states of the shift positions are different in each shift device, no matter which shift device is used. Since the shift lever cannot be operated intuitively, the shift operability deteriorates.

The present invention has been made in view of the above circumstances, and an object thereof is to easily perform a shift operation regardless of whether the first shift device or the second shift device is used. Another object of the present invention is to provide a shift control device for a transmission that is capable of improving shift operability.

[0007]

[Means for Solving the Problems] Means for achieving the above-mentioned objects and their effects will be described below. The invention according to claim 1 electrically shifts the first shift device having an operating means for selecting a shift position or a gear ratio of the transmission and the shift operation of an operating means for similarly selecting a shift position or a gear ratio of the transmission. And a second shift device that detects the shift shift position of the transmission or a gear ratio by driving the switching means based on a shift operation of the first shift device or a shift detection signal of the second shift device. In the shift control device of the transmission
The arrangement state of the plurality of operation positions of the first shift device and the arrangement state of the plurality of operation positions of the second shift device are the same arrangement with respect to the driver's seat.

According to the first aspect of the present invention, since the shift operation of the first shift device and the shift operation of the second shift device are the same for the driver's seat, either the first shift device or the second shift device is used. Even if is used, the shift operation can be easily performed, and the shift operability can be improved.

According to a second aspect of the present invention, there is provided a first aspect having an operating means for selecting a shift position or a gear ratio of the transmission.
A shift device and a second shift device that electrically detects a shift operation of an operating unit that similarly selects a shift position or a gear ratio of the transmission, and a shift operation of the first shift device or a second shift device of the second shift device. In a shift control device for a transmission, which is configured to switch a shift position or a gear ratio of a transmission by driving a switching means based on a shift detection signal, an arrangement state of a plurality of operation positions of the first shift device and the first shift device. The two shift devices are characterized in that they are symmetrically arranged with respect to the driver's seat at a plurality of operating positions.

According to the second aspect of the invention, since the shift operation of the first shift device and the shift operation of the second shift device are symmetrical with respect to the driver's seat, either the first shift device or the second shift device is operated. Even if is used, the shift operation can be easily performed, and the shift operability can be improved.

Further, according to the invention described in claim 3, the second shift device can be installed in a movable portion of the vehicle. Further, as in the invention described in claim 4, the second shift device can be installed on a vehicle door that is a movable portion of the vehicle.

According to a fifth aspect of the present invention, in the shift control device for a transmission according to any one of the first to fourth aspects, the operating means of the second shift device is different between the operation center position and its periphery. It is characterized in that it is provided so as to be capable of reciprocating between a plurality of operation positions set in the direction.

According to the fifth aspect of the invention, since the plurality of operating positions of the operating means are respectively assigned to different positions around the operation center position, a desired shift position or a desired shift position can be obtained by one shift operation of the operating means. The gear ratio can be easily selected, and the shift operability can be improved.

Further, as in the invention described in claim 6, the first shift device may electrically detect a shift operation of the operating means.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a schematic configuration diagram showing a vehicle equipped with the automatic transmission according to the present embodiment and a shift control device for the vehicle. As shown in FIG. 2, the output shaft (not shown) of the engine 2 is connected to the torque converter 4. The torque converter 4 uses the input rotation as a fluid (oil).
Is a kind of fluid coupling that transmits through the engine, the engine 2
The rotation of the output shaft is transmitted to the automatic transmission (hereinafter referred to as “A / T”) 6.

The hydraulic control unit 8 of the A / T 6 is provided with a position switching motor 10 as an actuator. The motor 10 is drive-controlled by an A / TECU 40 that controls the hydraulic pressure of the hydraulic control unit 8 of the A / T 6. Figure 3
As shown in FIG. 3, an outer lever 12 that penetrates the housing of the hydraulic control unit 8 is connected to an output shaft (not shown) of the motor 10. A detent plate 14 is integrally provided on the outer lever 12, and the detent plate 14 is connected to a manual valve 17 that switches a supply destination of control hydraulic pressure. When the motor 10 is rotationally driven, the manual valve 17 is switched via the detent plate 14, so that shift positions (ranges) such as P (parking), R (reverse), N (neutral), D (drive), etc. Is switched.

The tip of the detent spring 16 is elastically pressed against the outer periphery of the detent plate 14. The distal end of the detent spring 16 engages with the range positioning detent groove 15 formed on the outer peripheral edge of the detent plate 14 to give a sense of moderation and to position each range position of the A / T 6. .

As shown in FIG. 1, the driver's seat 19 of the passenger compartment 18
A steering wheel 21 is provided on a steering column 20 in front of the steering wheel 20. A first shift device 22 for performing a shift operation of the A / T 6 is provided on the floor beside the driver's seat 19. Further, the driver's seat door 24 as a movable portion is provided with a second shift device 26 for performing the shift operation of the A / T 6.

First shift device 22 and second shift device 2
6 has the same structure. Selection switches 29 and 30 for selecting the P position and the N position, respectively, are provided on the operation panel 28. Further, the shift lever 31 has a cross-shaped guide groove 3 formed in the operation panel 28.
The tilting operation is provided along the line 2. Guide groove 3
2, the R position and the D position are set in the front-rear direction of the vehicle, and the − (shift down) position and the + (for selecting the forward traveling position (3, 2, L) other than the D position in the left-right direction of the vehicle. Upshift) position is set. First shift device 2
The selection switches 29, 30 are provided on the second and second shift devices 26.
There is provided a first shift detection sensor 42 and a second shift detection sensor 44 that electrically detect the above operation and the selection operation of the shift lever 31. Even if the shift lever 31 is operated along the guide groove 32 to any of the R position, the D position, the − position, and the + position, if the operating force is released, the shift lever 31 is operated by the function of the detent mechanism (not shown). Each time, it is returned to the operation center position at the intersection of the guide grooves 32.

Further, the instrument panel 34 is provided with a manual cut switch 36 for switching between valid and invalid of a detection signal based on a shift operation of the second shift device 26.

In the vehicle according to the present embodiment, as an electronic control unit (ECU) that plays a role as the above-mentioned control system, an engine ECU (“E” mainly for controlling the operation of the engine 2).
/ GECU ") 38 and a transmission ECU (" A / TECU ") 40 which mainly controls the A / T 6 described above. The ECUs 38 and 40 are electrically connected to each other through an in-vehicle network line.

The A / TECU 40 includes a detection signal from the first shift detection sensor 42 of the first shift device 22, and a second detection signal from the second shift detection sensor 42.
The detection signal of the second shift detection sensor 44 of the shift device 26 and the setting signal of the manual cut switch 36 are input. In addition, the A / TECU 40 has a driver door 2
Door switch 4 for detecting the open / closed state of the vehicle door including 4
The detection signal of 6 is input, and the detection signal of the collision detection sensor 48 that detects the collision of the vehicle is also input.

A microcomputer is used as the A / TECU 40, and is a read-only memory in which programs necessary for various software processes related to the shift position switching of the A / T 6 and the automatic switching of each shift speed in the forward traveling position are stored. (ROM), a central processing unit (CPU) that executes this program, a writable memory (RAM) that temporarily stores variables necessary for the program, and the like.

When the detection signal of the first shift detection sensor 42 and the detection signal of the second shift detection sensor 44 are input at the same time when the engine 2 is operating, the A / TECU 40 outputs the first shift detection sensor 42. The detection signal is prioritized, and the drive control of the motor 10 is performed based on the detection signal.

When the A / TECU 40 detects a vehicle collision based on the detection signal of the collision detection sensor 48 while the engine 2 is operating, it determines that the second shift device 26 is in an unsteady state, and the second The drive of the motor 10 based on the detection signal of the shift detection sensor 44 is prohibited. This is because when the vehicle is collided with an abnormal external force or impact force,
The shift device 26 may be damaged and the second
The reliability of the detection signal of the shift detection sensor 44 may decrease, and in such a case, the use of the shift detection sensor 44 is intentionally avoided.

When the opening of the vehicle door is detected based on the detection signal of the door switch 46 in the operating state of the engine 2, the A / TECU 40 determines that the second shift device 26 is in the unsteady state, and the second Shift detection sensor 44
The driving of the motor 10 based on the detection signal is prohibited. When the driver's seat door 24 is opened, the second shift device 26 also moves, the second shift device 26 moves away from the driver, the arrangement angle changes, and the shift lever 31 moves.
This is because the operability of may decrease.

Next, the shift control process executed by the A / TECU 40 will be described with reference to the flowchart of FIG. This process is a process that is repeatedly executed periodically at preset short time intervals.

When this process is started, first, step 1
At 10, it is determined based on the detection signal of the door switch 46 whether the driver's seat door 24 is open. If it is determined that the driver's door 24 is open, the process proceeds to step 160, and if it is determined that the driver's door 24 is not open, the process proceeds to step 120.

At step 120, it is judged based on the detection signal of the collision detection sensor 48 whether the vehicle has collided. If it is determined that the vehicle has collided, the process proceeds to step 16
If it is determined that the vehicle has not collided with 0, the routine proceeds to step 130.

In step 130, it is determined whether the second shift device 26 is invalidated based on whether the setting signal of the manual cut switch 36 is ON. If it is determined that the setting signal of the manual cut switch 36 is ON, the process proceeds to step 160, and if it is determined that the setting signal of the manual cut switch 36 is OFF, the process proceeds to step 140.

In step 140, both the first shift device 22 and the second shift device 26 are activated. As a result, the first operation based on the shift operation of the first shift device 22 is performed.
The detection signal of the shift detection sensor 42 is processed as valid, and the detection signal of the second shift detection sensor 44 based on the shift operation of the second shift device 26 is processed as valid. In the next step 150, the first shift device is processed. The detection signal based on the shift operation of 22 and the detection signal based on the shift operation of the second shift device 26 are simultaneously performed by the A / TECU 40.
When the input signal is input to, the detection signal based on the shift operation of the first shift device 22 is preferentially processed, and this routine ends.

Further, in step 160, only the first shift device 22 is activated, and the detection signal of the first shift detection sensor 42 based on the shift operation of the first shift device 22 is processed as valid.

In the following step 170, the second shift device 26 is deactivated, and the detection signal of the second shift detection sensor 44 based on the shift operation of the second shift device 26 is treated as invalid.

5 and 6 show an example of the shift control of the A / T6. As shown in FIG. 5, when the actual determination position is the D position, the setting signal of the manual cut switch 36 is set to the timing t1 to t4.
The first shift device 22 is activated and the second shift device 26 is deactivated when turned ON for the period up to. Therefore, even if the second shift device 26 is shifted to the -position at the timing t2, the detection signal is treated as invalid, and the determination position is maintained at the D position.

When the first shift device 22 is shifted to the R position at the timing t3, the detection signal is processed as valid, so that the determination position is R.
The position is changed.

When the setting signal of the manual cut switch 36 is turned off at the timing t4, both the first shift device 22 and the second shift device 26 are activated. At timing t5, when the driver's seat door 24 is opened and the detection signal of the door switch 46 is turned on, the first
The shift device 22 is activated and the second shift device 2
6 is made inactive. Therefore, the timing t6
In the case where the second shift device 26 is shifted to the D position, the detection signal is processed as invalid,
The judgment position is maintained at the R position.

FIG. 6 shows the manual cut switch 3
6 shows an example of the shift control of the A / T 6 when the setting signal of No. 6 and the detection signal of the door switch 46 are not input.

Since the setting signal of the manual cut switch 36 and the detection signal of the door switch 46 are not input,
Both the first shift device 22 and the second shift device 26 are activated. When the second shift device 26 is shifted to the R position at the timing t7 in the state where the actual determination position is the P position, the detection signal is processed as valid and the determination position is changed to the R position.

Next, at timing t8, when the first shift device 22 is shifted to the D position, the second shift device 26 outputs the R position detection signal. Since the signal is preferentially processed, the determination position is changed to the D position. The detection signal of the second shift device 26 is output until the timing t9, but the detection signal of the first shift device 22 is output until the timing t10 after the timing t9, so the determination position is maintained at the D position. Thus, when both the first shift device 22 and the second shift device 26 are activated, the shift operation by the first shift device 22 is preferentially processed.

According to this embodiment described above, the following effects can be obtained. In the present embodiment, when the collision of the vehicle is detected while the engine 2 is operating, the driving of the motor 10 based on the detection signal of the second shift detection sensor 44 is prohibited. That is, when an abnormal external force acts due to a vehicle collision, the second shift device 26 provided on the driver's door 24 may be damaged and the reliability of the detection signal of the second shift detection sensor 44 may be reduced. It is possible to prevent the operation of the motor 10 at.

In the present embodiment, the motor 1 based on the detection signal of the second shift detection sensor 44 when the vehicle door (driver's door 24) is opened while the engine 2 is operating.
The drive of 0 is prohibited. When the driver's seat door 24 is opened, the second shift device 26 also moves, and the operability of the shift lever 31 may deteriorate due to the second shift device 26 moving away from the driver or the arrangement angle changing. It is possible to prevent the operation of the motor 10 in this state.

In the present embodiment, the first shift device 22
The position arrangement and the position arrangement of the second shift device 26 are the same with respect to the vehicle. Therefore, the shift operation of the first shift device 22 and the shift operation of the second shift device 26 are the same with respect to the vehicle. Therefore, the shift operation is performed using either the first shift device 22 or the second shift device 26. Are the same and the operability can be improved. In addition, the first shift device 22 and the second shift device 2
Since the plurality of operation positions of 6 correspond to the plurality of positions of A / T 6, it is possible to easily and surely select a desired position by operating one of the operation positions of the shift lever 31, and to perform the shift operation. It is possible to improve the property.

The embodiment can be modified as follows. In the above embodiment, the vehicle door (driver's seat door 2
It is also possible to prohibit the driving of the motor 10 based on the shift operation of the first shift device 22 when 4) is opened and when a collision is detected.

In the above embodiment, the second shift device 26 may be provided on the steering column 20. In the above embodiment, the first shift device 22 and the second shift device 26 are provided with the shift lever 31, but the shift lever 31 may be omitted and the operation switches corresponding to each position arrangement may be provided. Good.

In the above embodiment, the shift lever 31
Although the position switching motor 10 as an actuator is drive-controlled based on the detection signals of the first shift detection sensor 42 and the second shift detection sensor 44 based on the operation of A, the position of A / T 6 is switched. /
The gear may be switched by controlling the drive of a shift valve incorporated in T6.

In the above-described embodiment, the shift control device for an automatic transmission is embodied. However, a shift of a transmission in which a shift operation of the shift device is electrically detected to switch a shift position or a gear ratio of the transmission. It may be embodied in a control device. For example, it may be embodied as a manual transmission that performs a manual shift, a manual transmission having an automatic transmission mode, or a shift control device for a continuously variable transmission.

In the above embodiment, the arrangement state of the plurality of operating positions of the first shift device 22 and the second shift device 2
The plurality of operation positions 6 may be arranged symmetrically with respect to the driver's seat 19. In this case as well, the shift operation can be easily performed by using either the first shift device or the second shift device, and the shift operability can be improved.

Next, other technical ideas that can be understood from the above embodiment will be described below. The shift control device for a transmission according to any one of claims 1 to 6, wherein the shift operation of the first shift device is prioritized over the shift operation of the second shift device. Shift control device.

[Brief description of drawings]

FIG. 1 is a layout view of a shift device according to an embodiment.

FIG. 2 is a schematic configuration diagram showing a vehicle equipped with an automatic transmission according to the embodiment and a shift control device thereof.

FIG. 3 is a schematic diagram of a main part of a shift control device.

FIG. 4 is a flowchart showing shift control processing.

FIG. 5 is a time chart showing an example of shift control.

FIG. 6 is a time chart showing an example of shift control.

[Explanation of symbols]

6 ... Automatic transmission, 10 ... Motor for position switching, 2
2 ... 1st shift device, 24 ... Driver side door, 26 ... 2nd shift device, 31 ... Shift lever, 40 ... A / TECU,
42, 44 ... Shift detection sensor, 46 ... Door switch,
48 ... Collision detection sensor.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hideo Tomomatsu             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Hideki Miyata             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 3D040 AA01 AA13 AA22 AA33 AB01                       AC07 AC36 AC66 AD05

Claims (6)

[Claims] 1. A first shift device having an operating means for selecting a shift position or a gear ratio of a transmission, and a first shift device for electrically detecting a shift operation of an operating means for selecting a shift position or a gear ratio of the transmission. A transmission including two shift devices, wherein the shift position or the gear ratio of the transmission is switched by driving the switching means based on a shift operation of the first shift device or a shift detection signal of the second shift device. The shift control device according to claim 1, wherein the arrangement state of the plurality of operation positions of the first shift device and the arrangement state of the plurality of operation positions of the second shift device are the same arrangement with respect to the driver's seat. Machine shift control device. 2. A first shift device having an operating means for selecting a shift position or a gear ratio of a transmission, and a first shift device for electrically detecting a shift operation of an operating means for selecting a shift position or a gear ratio of the transmission. A transmission including two shift devices, wherein the shift position or the gear ratio of the transmission is switched by driving the switching means based on a shift operation of the first shift device or a shift detection signal of the second shift device. The shift control device according to claim 1, wherein the arrangement state of the plurality of operation positions of the first shift device and the arrangement state of the plurality of operation positions of the second shift device are symmetrically arranged with respect to the driver's seat. Machine shift control device. 3. The shift control device for a transmission according to claim 1, wherein the second shift device is installed in a movable part of the vehicle. 4. The shift control device for a transmission according to claim 3, wherein the movable portion is a vehicle door. 5. The shift control device for a transmission according to claim 1, wherein the operation means of the second shift device is a plurality of operation center positions and a plurality of directions set around the operation center position. A shift control device for a transmission, wherein the shift control device is provided so as to be capable of reciprocating between an operating position. 6. The shift control device for a transmission according to claim 1, wherein the first shift device electrically detects a shift operation of the operating means. Shift control device for transmission.