JP2794585B2 - Transmission control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission control device that operates a gear shift unit of a transmission in response to an electric signal of a command unit such as a shift lever.

[Conventional technology]

Conventionally, as a transmission mounted on a vehicle, the behavior of a manually operated change lever unit, that is, a command unit, is converted into an electric signal, an actuator is actuated in response to the electric signal, and the gear of the transmission is operated by actuation of the actuator. An automatic transmission called a power shift that operates a gear shift unit of a transmission in response to an electric signal of a command unit such as a shift lever or the like, which is a transmission including a gear shift unit that changes an engagement mode, is disclosed.

Conventionally, in the above-mentioned automatic transmission, as shown in FIGS. 3A and 3B, a shift pattern of a shift lever [FIG. 3A] and a shift pattern of a transmission [ FIG. 3 (B)] shows the same pattern,
It is configured corresponding to.

Further, as the above-mentioned automatic transmission, for example,
There is one disclosed in Japanese Patent Application Laid-Open No. 103140/103. JP-A-55-
The remote control device for a transmission disclosed in Japanese Patent No. 103140 discloses a command unit including a switch for generating a command signal corresponding to a shift direction position and a select direction position of a shift pattern, and a signal from the command unit. A gear shift unit correspondingly changing the meshing mode of the transmission;
And a switch for detecting a shift direction position and a select direction position of the transmission. In particular, the switch operates to disconnect a clutch in response to a command signal from the command unit, and a detection switch for the transmission. A clutch actuator that acts to connect the clutch in response to a shift completion signal from the controller, a switch for detecting an operation mode of the clutch, and the command unit when the switch detects a disengaged state of the clutch. And an electric circuit for providing a shift direction position command signal from the gear shift unit to the gear shift unit.

[Problems to be solved by the invention]

By the way, when the shift pattern of the shift lever and the shift pattern of the transmission are the same pattern, the shift command signal issued from the shift lever is used to operate the shift actuator and the select actuator in the gear shift unit of the transmission. Therefore, no problem occurs in the gear shifting operation. For example, in a shift pattern when the shift lever is shown in FIG. 3 (A), as shown by the arrows, when the shift to the fourth speed position from the third speed position through the neutral position N ₂ and the neutral position N _3, third as shown by the arrows in FIG. (B), a striker actuated shift actuator of the gear shift unit, a signal as from the shift lever, is shifted to the neutral position N ₂ from the third speed position,
Then, a selection of striker from the neutral position N ₂ to the neutral position N ₃ select actuator is actuated last shift actuator is operated to shift from the neutral position N ₃ to the fourth speed position.

However, by using the shift lever in common with FIG. 3A for transmissions having different shift patterns, the shift pattern of the shift lever shown in FIG. 4A and the transmission shown in FIG. When the patterns are different like the shift pattern, the gear shift unit of the transmission cannot operate according to the movement of the shift lever as in the case of the same pattern, and various problems occur.

For example, FIG. 5 as indicated by an arrow (A), the move from the shift lever 2 speed position to the third speed position through the neutral position N _2, a command signal upshift transmission gear shift unit corresponding thereto , The shift pattern of the transmission is configured as shown in FIG. 5 (B).
Although up to N ₂ is shifted, since the signal of the neutral position N ₃ is not inputted, it can not shift to the third speed position. However, as long as from the neutral position N ₂ to a select actuator for gear shift unit not inputted select signal to the neutral position N _3, shift to the third speed position is impossible.

When the position of the shift pattern of the transmission corresponds to the same select position, the shift lever is moved from the third gear position to the neutral position as shown in FIG.
When issues an instruction signal of N ₂ and through a neutral position N ₃ to the fourth speed position, as shown in FIG. 6 (B), the select actuator in gear shift unit of the transmission is the neutral position N ₃ so performing multiple selection with the N _2. That is, by shifting the striker in the neutral position N ₃ from the shift actuator is third speed position of the gear shift unit, then the select actuator from the neutral position N ₃ to the neutral position N _2, continues from the neutral position N ₂ to a neutral position N ₃ and select, so that the last shift from the neutral position N ₃ to the fourth speed position. Therefore, the select operation of the select actuator is performed wastefully.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problem, and to enable a shift to be performed in vain motion even when a shift pattern of a shift lever and a shift pattern of a transmission are different. Time lag is shortened,
Compared to the conventional operation control, the number of unnecessary operations of the select operation is eliminated, the reliability of the magnetic valve of the gear shift unit can be improved, and the shift lever having the same shift pattern can be changed to various shift patterns of the transmission. It is an object of the present invention to provide a control device for a transmission which can be easily applied to the transmission and has a greater degree of freedom in designing the gear arrangement of the transmission.

[Means for solving the problem]

The present invention is configured as follows in order to solve the above problems and achieve the above object. That is, the present invention provides a command unit for generating a command signal for a position of a change lever, a gear shift unit having an actuator for changing a gear meshing mode of a transmission in response to the command signal, and taking in signals from both units. And a controller that controls the position of the shift unit based on the signal of the command unit. When the signal from the command unit is shifted out, the gear shift unit is also set to the shift-out position, and the signal from the command unit is neutral. In the position, the gear shift unit is held in a shift-out position, and when a signal from the command unit is shift-in, the gear shift unit is controlled to a select position, and then a shift-in control is performed by a controller. The present invention relates to a transmission control device.

Also, the present invention provides a command unit for generating a command signal for a position of a change lever, a gear shift unit having an actuator for changing a gear meshing state of a transmission in response to the command signal, and a signal from both units being neutral. When the vehicle speed is equal to or higher than a predetermined value, the gear shift unit is held at a current position, and when the vehicle speed is equal to or lower than a predetermined value, a controller that controls the gear shift unit to a select position of the command unit is provided. Machine control device.

[Action]

The transmission control device according to the present invention is configured as described above, and operates as follows. That is, the control device of the transmission controls the shift operation of the gear shift unit that changes the gear meshing mode of the transmission in response to the command signal of the shift lever, that is, the command unit, when the command unit is in the neutral position and at the predetermined vehicle speed. In the following, when the gear shift unit is in the neutral position, the gear shift unit is moved to a select position corresponding to the select movement of the command unit. Since the lever moves to the neutral position of the second speed position, the gear shift unit can be started without a select operation at the time of starting, and the time lag at the time of starting is reduced.

〔Example〕

Hereinafter, an embodiment of a control device for a transmission according to the present invention will be described in detail with reference to the drawings.

FIG. 1 (A) is a schematic view of a gear shift unit showing one embodiment of a transmission control device according to the present invention, and FIG. 1 (B) shows a shift pattern of a shift command unit corresponding to FIG. 1 (A). FIG. 2 and FIG. 2 are flowcharts of the transmission control device according to the present invention.

The transmission shift pattern 18 shown in FIG.
The shift lever, that is, the shift pattern 17 of the change lever shown in FIG. As shown in FIG. 1 (A), magnetic valves A, D, C, B, S, and E are provided in a gear shift unit 14 of the transmission to operate a shift actuator 16 and a select actuator 15. Have been. In response to the opening and closing operations of these magnetic valves A, D, C, B, S, E, the select actuator 15 moves the neutral positions N ₁ , N ₂ , N ₃ , N
Striker to select operation to one of the neutral position N _i of _4, also the shift actuator 16 is the neutral position N _i, retracted, first speed, third speed or 6-speed shift position SHB, or second speed, fourth speed or The shift operation is performed to one of the five-speed shift SHAs.

The transmission control device according to the present invention is configured such that a problem does not occur when the shift patterns are different from each other.
The following measures have been taken.

In the transmission control device according to the present invention, if the shift lever of the command unit is not shifted to the shift position, the select position of the gear shift unit is not determined, so that the time lag becomes longer when starting after stopping, and When the vehicle starts, the following operation control is further performed. That is, in order to shorten the time lag at the time of the start, there is a shift lever is neutral That neutral position N _i, slow the vehicle speed is below a predetermined speed, for example, equal to or less than 5km / h, in the gear shift unit 14 of the transmission the position of the striker, actuates the select actuator 15 of the gear shift unit 14 to move to the neutral position N _i where the shift lever is positioned. That is, when the shift lever is in the neutral position _Ni
When in, if the hand is released from the shift lever, since the shift lever to automatically move to the neutral position N ₂ of the second-speed position by the detent mechanism, upon starting, the select actuator 15 in the gear shift unit 14 of the transmission Does not need to perform the select operation, and the time lag is reduced by the time for the select operation. For example, vehicle if parked when the vehicle is traveling in sixth speed, waits shift lever via the neutral position N ₄ to 6 speed position neutral position N ₃ in the neutral position N _2. Here, if no take the measures is moved to the neutral position N ₄ from 6-speed position by the shift actuator 16 of the gear shift unit 14 of the transmission, and waits at the neutral position N _4. Then, if traveling by starting after stop of the vehicle, the shift lever neutral position N ₂
From it moves to the second speed position, it is select the neutral position N ₂ from the neutral position N ₄ via the neutral position N ₃ gear shift unit 14 select actuator 15, the transmission is activated, then the shift actuator 16 operation to be shifted from the neutral position N ₂ to the second speed position. Therefore, when the vehicle starts, the time during which the selecting actuator 15 of the gear shift unit 14 performs the selecting operation appears as a time lag. However, in the transmission control device according to the present invention, when the vehicle stops, the selected operation of the transmission has already been completed, so that there is no time lag when the vehicle starts.

The operation of the transmission control device according to the present invention will be described with reference to the flowchart of FIG. In the operation of the transmission control device, the shift actuator of the transmission is moved with respect to the movement of the shift lever according to the shift pattern 17.
The movement of the striker in the gear shift unit 14 including the actuator 16 and the select actuator 15 does not follow all the movements of the shift lever. The gear shift unit 14 of the transmission is provided with magnetic valves A, D, C, B, and E for operating the shift actuator 16 and the select actuator 15. In this case, when the magnetic valves A and B are turned on, the shift actuator is actuated to perform the gear release operation from the current shift position. Further, the magnetic valves C, D and E are valves having a function of operating a select actuator to move from a current select position to a predetermined select position or to maintain the selected position, that is, a neutral position. Further, the magnetic valve S is a valve connected to an air reservoir and functioning as a throttle.

First, in the control of the control device of the transmission, it is determined whether the switch for releasing the clutch is on or off. If the switch is off and the clutch is in the connected state, it is necessary to control the control device of the transmission. Because there is no, it ends.
When the switch is on and the clutch is disengaged,
The process proceeds to Step 21 (Step 20).

When the clutch is off, the shift movement of the selector lever or shift lever to determine whether any of those, the process when the shift lever is in the neutral position N _i proceeds to step 23, performs a gear disengagement operation When out, the process proceeds to step S22, or when shifting into a predetermined shift position, the process proceeds to step S28.
Proceed to (Step 21).

When the change lever unit or the shift lever is in the neutral position N _i, the vehicle is a predetermined speed, for example, 5km / h
It is determined whether the vehicle speed is equal to or lower than the predetermined vehicle speed. If the vehicle speed is equal to or lower than the predetermined vehicle speed, the process proceeds to step 24. If the vehicle speed is equal to or higher than the predetermined vehicle speed, the process proceeds to step 27 (step 23).

When the vehicle is at a predetermined vehicle speed or higher, that is, at 5 km / h or higher, the selection actuator 15 in the gear shift unit 14 of the transmission maintains the current selection position,
The magnetic valve for maintaining the selected position is turned on (step 27).

Vehicle below a predetermined vehicle speed, i.e., when: 5km / h determines whether the gear shift unit 14 of the transmission is in the neutral position N _i, the process when the position of the neutral position N _i Step 26 proceeds to the process if not the position of the neutral position N _i proceeds to step 25 (step 2
Four).

Gear shift unit 14 of the transmission is neutral position N _i
When in the shift lever (change lever unit CLU) select actuator for setting the gear shift unit 15 to the position of the neutral position N _i corresponding to the neutral position N _i shift lever instructs in response to a command signal A predetermined magnetic valve is turned on so as to operate (step 26).

Gear shift unit 14 of the transmission is neutral position N _i
If not, first, on a predetermined magnetic valve to move to the neutral position N _i which operates the shift actuator 16 of the gear shift unit 14 corresponding to the current shift position, gear shift to the neutral position N _i move the unit 14, then operates the select actuator 15, the shift lever is turned a predetermined magnetic valve to move the striker to the position of the neutral position N _i instructing. By this operation, the process proceeds to step 26 (step 25).

In step 21 of the operation, at the time of shift-in in which the movement of the shift lever is moved to a predetermined shift position, it is determined whether or not the gear is in the shift position and a gear disengagement operation is necessary. Goes to step 29,
If the gear disengagement operation is not necessary, the process proceeds to processing step 30 (step S28).

When a gear release operation is required, the magnetic valves A and B are turned on so as to operate the shift actuator 16 of the gear shift unit, the magnetic valves A and B are moved to the neutral position N _i , and the neutral position N of the deselected gear is selected. _The magnetic valves C, D, and E are turned on so as to hold _i (step 29).

Shift lever (ie change lever unit CLU)
Instructing gear shift stage, it is determined whether the equal neutral position N _i on the select line of the gear shift unit 15 at present performing the gear disengagement operation, the process when equal, the process proceeds to step 32, if not equal Proceed to processing step 31 (step 30).

Shift lever (ie change lever unit CLU)
Indication gear is, when not equal to the neutral position N _i on the select line of the gear shift unit 15 at present performing the gear unshift operation is to move to the neutral position N _i corresponding to the instruction shift stage of the shift lever operates the select actuator 15 of the gear shift unit 14 turns on the magnetic valves C, D, and E, to select the neutral position N _i of the select line corresponding to the instruction shift stage. Next, the process proceeds to Step 32 (Step 31).

Shift lever (ie change lever unit CLU)
Indication gear is, when equal to the neutral position N _i on the select line of the gear shift unit 15 at present performing the gear disengagement operation turns on the magnetic valves corresponding to the instruction shift stages of the shift lever, the gear shift unit 14
The shift actuator 16 is operated to shift to the designated gear (step 32).

〔The invention's effect〕

The transmission control device according to the present invention is configured as described above, and has the following effects. That is, the control device for the transmission includes a command unit for generating a command signal for a position of a change lever, a gear shift unit having an actuator for changing a gear meshing mode of the transmission in response to the command signal, When the vehicle speed is equal to or higher than the predetermined value, the controller holds the gear shift unit at the current position when the vehicle speed is equal to or higher than a predetermined value, and controls the gear shift unit to the select position of the command unit when the vehicle speed is equal to or lower than the predetermined value. When the hand is released from the shift lever that is the command unit, the shift lever moves to the neutral position of the second speed position, so that the gear shift unit can be started without a select operation at the time of start, and A time lag due to the select operation does not occur, and the speed change operation is shortened accordingly. In addition, by reducing the number of select operations of the gear shift unit, the number of operations of the magnetic valve is reduced, and the reliability of the magnetic valve can be improved accordingly.

Moreover, the transmission control apparatus according to the present invention can apply the same shift lever shift pattern to various transmissions, that is, gear shift unit shift patterns very easily. The lever shift pattern can be applied to a gear shift unit having an optimal gear arrangement for the vehicle, and the degree of freedom in design can be greatly improved.

[Brief description of the drawings]

FIG. 1A is a schematic view of a gear shift unit showing one embodiment of a transmission control device according to the present invention, and FIG. 1B.
FIG. 3 is a schematic view of a shift pattern of a shift lever corresponding to FIG. 1, FIG. 2 is a flowchart showing an example of the operation of the transmission control device according to the present invention, and FIG. 3 (A) and FIG. FIGS. 4 (A) and 4 (B), FIGS. 5 (A) and 5 (5) are schematic diagrams showing an example in which the shift pattern of the shift lever and the shift pattern of the gear shift unit are the same.
6 (B), 6 (A) and 6 (B) are schematic diagrams showing an example in which the shift pattern of the shift lever and the shift pattern of the gear shift unit are different. 14: Gear shift unit, 15: Select actuator, 16: Shift actuator, 17: Shift lever shift pattern, 18: Transmission shift pattern.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shoko Enamena 2-11-6 Shinmeicho, Higashimatsuyama-shi, Saitama Automobile Equipment Co., Ltd. Matsuyama Plant (58) Field surveyed (Int.Cl. ⁶ , DB name) 59/00-61/12 F16H 61/16-61/24 F16H 63/40-63/48

Claims (2)

(57) [Claims] 1. A command unit for generating a command signal for a position of a change lever, a gear shift unit having an actuator for changing a gear meshing mode of a transmission in response to the command signal, and taking in signals from both units. A controller that controls the position of the shift unit based on the signal of the command unit. When the signal from the command unit is shifted out, the gear shift unit is also set to the shift-out position, and the signal from the command unit is set to the neutral position. The gear shift unit is characterized in that the gear shift unit is held in a shift-out position, and when a signal from the command unit is shift-in, a shift-in control is performed by a controller after performing a select position control on the gear shift unit. Machine control device. 2. A command unit for generating a command signal for a position of a change lever, a gear shift unit having an actuator for changing a gear meshing state of a transmission in response to the command signal, and a signal from both units being in a neutral position. time,
A controller for holding the gear shift unit at a current position when the vehicle speed is equal to or higher than a predetermined value, and controlling the gear shift unit to a select position of the command unit when the vehicle speed is equal to or lower than the predetermined value. apparatus.