阅读说明：本技术 自动变速器的变速控制系统 (Shift control system for automatic transmission ) 是由 白砂俊明 大久保智广 安部祥司 西英之 大山一 肥后公则 于 2021-02-05 设计创作，主要内容包括：本发明提供一种自动变速器的变速控制系统,在该自动变速器的变速控制系统中,在第1手动模式和第2手动模式中,预先选择设定为第2手动模式。自动变速器(300)的变速控制系统(100)搭载于通过打开点火开关(70)来启动的车辆(200)上,且能够设定为自动变速模式或手动变速模式,该手动变速模式具有：通过输入手动变速指示来切换变速级并进行保持的第1手动模式；在切换变速级后通过满足复原条件来复原为自动变速模式的第2手动模式。变速控制系统具备预先选择设定第1手动模式或第2手动模式其中之一的模式选择模组(56)。模式选择模组在点火开关打开时,预先选择将自动变速器设定为第2手动模式。(In a shift control system of an automatic transmission, a 2 nd manual mode is selected and set in advance between a 1 st manual mode and a 2 nd manual mode. A shift control system (100) for an automatic transmission (300) is mounted on a vehicle (200) that is started by turning on an ignition switch (70), and can be set to an automatic shift mode or a manual shift mode, the manual shift mode including: a 1 st manual mode in which a manual shift instruction is input to switch and hold a shift stage; the 2 nd manual mode that is the automatic shift mode is restored by satisfying the restoration condition after the shift stage is switched. The gear shift control system includes a mode selection module (56) for selecting and setting one of the 1 st manual mode and the 2 nd manual mode in advance. The mode selection module preselects setting of the automatic transmission to a 2 nd manual mode when an ignition switch is turned on.)

1. A shift control system for an automatic transmission that is mounted on a vehicle that is started by turning on an ignition switch and that can be set to an automatic shift mode or a manual shift mode, characterized in that:

a shift switch provided with a manual shift instruction capable of inputting a shift position of the automatic transmission to be arbitrarily switched in the manual shift mode;

the manual shift mode has a 1 st manual mode and a 2 nd manual mode, the 1 st manual mode switching and holding the shift stage by inputting the manual shift instruction using the shift switch, the 2 nd manual mode being restored to the automatic shift mode by satisfying a restoration condition after switching the shift stage;

The gear shift control system is provided with a mode selection module for selecting and setting one of the 1 st manual mode or the 2 nd manual mode in advance;

the mode selection module preselects setting of the automatic transmission to the 2 nd manual mode when the ignition switch is turned on.

2. The shift control system according to claim 1, characterized in that:

the return condition is that the speed of the vehicle becomes a constant value when the shift control system is set to the 2 nd manual mode.

3. The shift control system according to claim 1, characterized in that:

the number of the gear switches is 1 on the left and the right of a steering wheel of the vehicle;

one of the shift switches upshifts the shift stage;

the other of the shift position switches downshifts the shift speed.

4. The shift control system according to claim 2, characterized in that:

the number of the gear switches is 1 on the left and the right of a steering wheel of the vehicle;

one of the shift switches upshifts the shift stage;

the other of the shift position switches downshifts the shift speed.

5. The shift control system according to any one of claims 1 to 4, characterized in that:

The mode selection module comprises an instruction switch and a display;

the mode selection module is configured to operate the command switch to select the 1 st manual mode or the 2 nd manual mode icon displayed on the display, and to select in advance the 1 st manual mode or the 2 nd manual mode to be set after the manual shift instruction is input to the inhibitor switch.

6. The shift control system according to any one of claims 1 to 4, characterized in that:

the mode selection module comprises a touch-press type touch screen;

the mode selection module is configured to previously select the 1 st manual mode or the 2 nd manual mode after the manual shift instruction is input to the inhibitor switch by directly pressing an icon of the 1 st manual mode or the 2 nd manual mode displayed on the touch panel.

7. The shift control system according to any one of claims 1 to 4, characterized in that:

the shift control system is set to the automatic shift mode by continuously inputting the inhibitor switch for a certain time while the 1 st manual mode or the 2 nd manual mode is set.

8. The shift control system according to claim 5, characterized in that:

the shift control system is set to the automatic shift mode by continuously inputting the inhibitor switch for a certain time while the 1 st manual mode or the 2 nd manual mode is set.

9. The shift control system according to claim 6, characterized in that:

the shift control system is set to the automatic shift mode by continuously inputting the inhibitor switch for a certain time while the 1 st manual mode or the 2 nd manual mode is set.

Technical Field

The present invention relates to a shift control system of an automatic transmission.

Background

A conventional automatic transmission can be set to a parking range used when the vehicle is parked, a reverse range used when the vehicle is moved backward, a neutral range used when the driving force is not transmitted to the vehicle, and a forward range (automatic shift mode) in which the shift stage can be automatically switched.

On the other hand, for example, in order to enable a 2-speed start, it is required to manually shift the gear position of the automatic transmission to perform the running. To meet this demand, for example, patent document 1 proposes a control device for an automatic transmission having a manual mode (manual shift mode). When the manual mode is set, the control device of the automatic transmission can shift up or down the gear position by a shift switch provided on a steering wheel, for example. Therefore, when the vehicle is stopped, the shift speed is switched to the 2-speed stage by upshifting in advance, and the 2-speed start can be performed.

Documents of the prior art

Patent document

Patent document 1: patent No. 3630603.

It is also required to temporarily use the manual mode, such as until the vehicle stops. In order to satisfy this requirement, the control device of the automatic transmission may be designed to have a normal manual mode in which the manually switched gear position is maintained, and a temporary manual mode in which the forward gear position is set by satisfying a certain condition, such as the vehicle speed becoming 0 after exceeding a certain threshold value, after the gear position is manually switched. In this temporary manual mode, in order to enable the vehicle to continue to stop in a state where the shift stage is switched to the 2-speed stage, the shift stage is continuously maintained at the 2-speed stage as long as the vehicle speed does not exceed a certain threshold value, for example, 20 km/h.

The control device for an automatic transmission having the normal manual mode and the temporary manual mode is generally configured as follows: for example, by operating a selector lever and a shift switch added to a manual range that can be set to a normal manual mode, it is possible to set either mode. On the other hand, the operation of selecting the normal manual mode or the provisional manual mode as above is complicated, and may cause erroneous operation by the occupant.

Therefore, it is preferable that the control device of the automatic transmission including the normal manual mode and the provisional manual mode be set to either of the normal manual mode and the provisional manual mode by selecting in advance, and thereby be able to be set to either of the modes by a simple operation.

Further, the control device of the automatic transmission including the normal manual mode and the provisional manual mode is as complicated as possible to prevent the operation from being changed after the provisional manual mode is set. When the control device of the automatic transmission is set to the normal manual mode, the rider needs to appropriately perform an operation of shifting up or down the gear position by the shift position switch. On the other hand, when the control device of the automatic transmission is set to the temporary manual mode, the rider needs to temporarily shift up or down the gear position by the shift switch, but the vehicle can be driven in the forward range after the vehicle is stopped once. Therefore, the temporary manual mode operation is less complicated than the normal manual mode, and is therefore a mode that is used to be easily operated by a vehicle occupant driving a vehicle equipped with an existing automatic transmission.

Disclosure of Invention

Technical problem to be solved by the invention

Accordingly, an object of the present invention is to provide a shift control system for an automatic transmission, in which when an ignition switch is turned on, the 2 nd manual mode is set to be selected in advance from the 1 st manual mode (normal manual mode) and the 2 nd manual mode (provisional manual mode).

Means for solving the problems

In order to achieve the above object, a shift control system for an automatic transmission mounted on a vehicle that is started by turning on an ignition switch and that can be set to an automatic shift mode or a manual shift mode according to an embodiment of the present invention includes a shift switch that can input a manual shift instruction for arbitrarily switching a shift stage of the automatic transmission in the manual shift mode; the manual shift mode has a 1 st manual mode and a 2 nd manual mode, the 1 st manual mode switching and holding the shift stage by inputting the manual shift instruction using the shift switch, the 2 nd manual mode being restored to the automatic shift mode by satisfying a restoration condition after switching the shift stage; the gear shift control system is provided with a mode selection module for selecting and setting one of the 1 st manual mode or the 2 nd manual mode in advance; the mode selection module preselects setting of the automatic transmission to the 2 nd manual mode when the ignition switch is turned on.

Effects of the invention

According to the present invention, the shift control system of the automatic transmission sets the automatic transmission to the 2 nd manual mode (temporary manual mode) in advance when the ignition switch is turned on. Therefore, the vehicle occupant can easily drive the vehicle in the 2 nd manual mode that does not require a troublesome operation.

Drawings

Fig. 1 is a schematic diagram of an interior of a vehicle in which a shift control system of an automatic transmission according to an embodiment of the present invention is mounted;

FIG. 2 is a control block diagram of the shift control system of FIG. 1;

FIG. 3 is a schematic view of the command switch of FIG. 1;

FIG. 4 is a mode selection interface displayed by the display of FIG. 1;

fig. 5 is a flow chart illustrating mode selection of the gear shift control system shown in fig. 1.

Detailed Description

An embodiment of a shift control system for an automatic transmission according to the present invention will be described below with reference to the drawings.

[1: vehicle structure

Fig. 1 shows a cabin of a vehicle 200 in which a shift control system of an automatic transmission is mounted. The vehicle 200 includes a driver seat 202 on which a passenger who drives the vehicle 200 sits, a passenger seat 204 disposed at a position symmetrical to the driver seat 202 in the vehicle width direction, an instrument panel 206 disposed in front of the driver seat 202 and the passenger seat 204 and extending in the vehicle width direction, a center console 208 disposed between the driver seat 202 and the passenger seat 204, and a substantially circular steering wheel 210 provided on the driver seat 202 side of the instrument panel 206 and capable of inputting a steering instruction of the vehicle 200. The driver seat 202 and the steering wheel 210 are disposed on the right side in the vehicle width direction in the figure, but may be disposed on the left side in the vehicle width direction.

In the embodiment, the vehicle 200 includes the liquid crystal display 10 in the center portion in the vehicle width direction of the dash panel 206. The liquid crystal display 10 can display, for example, an operation interface (not shown) for an audio function, an operation interface (not shown) for a navigation function, and a mode selection interface for selecting or reserving one of a manual mode (1 st manual mode or normal manual mode) or a direct mode (2 nd manual mode or temporary manual mode) described later in advance.

The vehicle 200 includes a selector unit 20 on the center console 208, and the selector unit 20 can input setting instructions for the parking range, the reverse range, the neutral range, and the forward range. The selector unit 20 includes a selector lever 22 extending in the vertical direction of the vehicle 200 and being graspable by an occupant seated in the driver seat 202.

In the embodiment, the selector unit 20 has 4 shift positions corresponding to the parking position, the reverse position, the neutral position, and the forward position (see fig. 2). The reverse, neutral, and forward gear positions are arranged from the front to the rear of the vehicle 200. Further, the gear position of the parking position is disposed adjacent to the gear position of the reverse position, and is located on the driver seat 202 side with respect to the gear positions of the reverse position, the neutral position, and the forward position. The selector lever 22 shown in fig. 1 is guided by a guide portion (not shown) provided inside the selector portion 20 and is movable to each shift position. The selector unit 20 is provided with a position sensor (not shown) that detects the shift position of the selector lever 22, and outputs the detected shift position as an electric signal to the control unit 50 described below.

Returning to fig. 1, the vehicle 200 includes a command switch 30 on the center console 208, and the command switch 30 is disposed on the vehicle rear side of the selector unit 20 and is capable of inputting an operation instruction on the interface displayed on the liquid crystal display 10.

As shown in fig. 3, the command switch 30 includes a command button 32 capable of inputting a selection or determination command on the interface displayed on the liquid crystal display 10, a main interface switch 34 capable of inputting a command to display a main interface (not shown) on the liquid crystal display 10, an audio interface switch 35 capable of inputting a command to display an operation interface of an audio function, a navigation interface switch 36 capable of inputting a command to display an operation interface of a navigation function, and a return switch 37 capable of inputting a command to display the previous interface.

In the embodiment, the command button 32 can input a selection command by rotating about the vertical direction of the vehicle 200 or tilting in the front-rear direction of the vehicle 200, and can input a determination command by pressing in the vertical direction of the vehicle 200.

Returning to fig. 1, the vehicle 200 includes an upshift switch 42 at the vehicle width direction right end portion on the rear surface of the steering wheel 210, and a downshift switch 44 at the vehicle width direction left end portion on the rear surface of the steering wheel 210. The upshift switch 42 enables an upshift instruction to be input in a manual mode and a direct mode described later. The downshift switch 44 is capable of inputting a downshift instruction in the manual mode and the direct mode. Thus, the driver seated in the driver seat 202 can easily input the upshift or downshift instruction without separating his or her hand from the steering wheel 210.

[2: structure of Shift control System

Fig. 2 shows a block diagram configuration of an automatic transmission 300 provided in a vehicle 200 and a shift control system 100 for controlling switching of the shift stage of the automatic transmission 300. The shift control system 100 includes a control unit 50 electrically connected to an automatic transmission 300.

In the embodiment, the control unit 50 is electrically connected to the liquid crystal display 10, the selector unit 20, the command switch 30, the upshift switch 42, the downshift switch 44, the vehicle speed sensor 60, and the ignition switch 70. Therefore, the control unit 50 outputs a signal including an instruction to switch the shift stage to the automatic transmission 300 based on the signals input from the liquid crystal display 10, the selector portion 20, the command switch 30, the upshift switch 42, and the downshift switch 44, the vehicle speed signal transmitted from the vehicle speed sensor 60, and the ignition signal transmitted from the ignition switch 70.

The control unit 50 includes an automatic shift mode control portion 52, a manual shift mode control portion 54, and a mode selection portion (mode selection module) 56.

When the select lever 22 of the selector portion 20 is in the forward gear position, the automatic shift mode control portion 52 sets the shift control system 100 to the automatic shift mode in which the gear position of the automatic transmission 300 is automatically switched. When the shift control system 100 is set to the automatic shift mode, the automatic shift mode control portion 52 automatically switches the shift stage of the automatic transmission 300 based on a signal relating to the traveling state of the vehicle 200 transmitted from the vehicle speed sensor 60 and the engine load detection sensor (not shown) and an algorithm for determining an appropriate shift stage according to the traveling state of the vehicle 200.

After the upshift switch 42 or the downshift switch 44 is turned on in a state where the shift control system 100 is set to the automatic shift mode, the manual shift mode control portion 54 sets the shift control system 100 to a manual mode (1 st manual mode) or a direct mode (2 nd manual mode) in which the shift speed of the automatic transmission 300 is switched in accordance with the input upshift instruction or downshift instruction.

When the shift control system 100 is set to the manual mode, the manual shift mode control unit 54 switches the shift stage of the automatic transmission 300 in accordance with the input upshift instruction or downshift instruction and holds the shift stage. For example, when the shift control system 100 is set to the automatic shift mode and the shift stage is switched to the 3-stage, the shift control system 100 is set to the manual mode and the shift stage is switched to the 4-stage by turning on the upshift switch 42, and the shift control system 100 is set to the manual mode and the shift stage is switched to the 2-stage by turning on the downshift switch 44.

When the shift control system 100 is set to the direct mode, the manual shift mode control unit 54 switches the gear position of the automatic transmission 300 in accordance with the input upshift instruction or downshift instruction, and then sets the shift control system 100 to the automatic shift mode by satisfying a predetermined return condition.

The recovery condition in the embodiment is that when the transmission control system 100 is set to the direct mode, the speed of the vehicle 200 exceeds a certain value, for example, exceeds 20 km/h and becomes 0 km/h, and the vehicle 200 stops. Thus, for example, in a state where the occupant seated in the driver seat 202 of the vehicle 200 sets the shift control system 100 to the automatic shift mode and stops the vehicle 200, the vehicle 200 can be started in the 2 th gear by turning on the upshift switch 42 to set the shift control system 100 to the direct mode and switching the shift stage of the automatic transmission 300 to the 2 nd gear only at the time of starting in the 2 nd gear at the next starting. Thereafter, when the vehicle 200 stops again, the shift control system 100 automatically returns from the direct mode to the automatic shift mode, and does not require the rider to perform an operation to return to the automatic shift mode.

In the embodiment, when the shift control system 100 is set to the manual mode or the direct mode, the control unit 50 sets the shift control system 100 to the automatic shift mode by continuously turning on the upshift switch 42 or the downshift switch 44 for a certain time, for example, for 2 seconds or longer. This allows the rider to freely select the mode of the shift control system 100.

The mode selection portion 56 preselects or reserves setting of the shift control system 100 to one of the manual mode or the direct mode by the manual shift mode control portion 54.

In the embodiment, the liquid crystal display 10 displays a mode selection interface by operating the command button 32 to select an icon of "steering position switch" in a state where the main interface switch 34 of the command switch 30 is on and the main interface is displayed (see fig. 4). In this mode selection interface, the command button 32 is tilted in the front-rear direction of the vehicle 200 to select an icon for the manual mode or an icon for the direct mode, and the command button 32 is pressed in the up-down direction to transmit the selected mode to the mode selection unit 56. The mode selection unit 56, which receives the mode selected in the mode selection interface, is configured to set the transmission control system 100 to the selected mode in advance by the manual transmission mode control unit 54 after the upshift switch 42 or the downshift switch 44 is turned on.

[3: mode selection

Fig. 5 shows a flow when the command switch 30 is operated by the occupant seated in the driver seat 202 to previously select or reserve a mode to be set by the shift control system 100. In parallel with this flow, the control unit 50 of the shift control system 100 additionally performs the following operations: automatic switching of the shift stage of the automatic transmission 300 in the automatic shift mode, or manual switching of the shift stage of the automatic transmission 300 in the manual mode or the direct mode.

In step S1 of fig. 5, the control unit 50 of the shift control system 100 acquires various information such as the shift position signal of the select lever 22 transmitted from the selector section 20, the mode (one of the automatic shift mode, the manual mode, or the direct mode) of the shift control system 100 in step S1, the vehicle speed signal transmitted from the vehicle speed sensor 60, and the ignition signal transmitted from the ignition switch 70. The various information is acquired at regular intervals.

At this time, the control unit 50 determines whether the ignition switch 70 is turned on based on the acquired ignition signal (step S2). When the ignition switch 70 is turned on (YES branch in step S2), the mode selector 56 of the control unit 50 determines in advance that the shift control system 100 is set to the direct mode after the upshift switch 42 or the downshift switch 44 is turned on (step S3).

After the shift control system 100 is set to the direct mode or when the ignition switch 70 is not turned on (when branching to NO in step S2) is determined in advance in step S3, the control unit 50 determines whether the vehicle 200 is in the stopped state based on the acquired vehicle speed signal (step S4). If the vehicle 200 is not in the parked state (when the NO branch is made at step S4), the flow returns to the first step S1.

If the vehicle is parked (YES branch of step S4), the rider can operate the command switch 30 to display the mode selection interface shown in fig. 4 on the liquid crystal display 10 and determine whether or not to select the manual mode icon (step S51). At this time, the rider may select the icon for the direct mode (step S52) instead of the icon for the manual mode (after branching to NO in step S51).

When the rider selects the icon of the manual mode on the mode selection interface (YES branch in step S51), the mode selection unit 56 selects in advance to set the shift control system 100 to the manual mode after the upshift switch 42 or the downshift switch 44 is turned on (step S61). On the other hand, when the occupant selects the icon of the direct mode on the mode selection interface, the mode selection unit 56 selects in advance to set the shift control system 100 to the direct mode after the upshift switch 42 or the downshift switch 44 is turned on (step S62).

In step S61, after the mode selector 56 has selected the manual mode of the shift control system 100, the control unit 50 determines whether the shift control system 100 has been set to the direct mode (step S71). When the shift control system 100 is set to the direct mode (when YES is branched from step S71), the control unit 50 sets the shift control system 100 to the automatic shift mode (step S81). On the other hand, when the shift control system 100 is set to the manual mode (when the process branches to NO in step S71), the shift control system 100 maintains the state in which the manual mode is set because the rider may be considered to have not changed the mode of the shift control system 100, and the flow returns to the first step S1.

In step S62, after the mode selector 56 has selected the setting of the shift control system 100 to the direct mode, the control unit 50 determines whether the shift control system 100 has been set to the manual mode (step S72). When the shift control system 100 is set to the manual mode (YES branch to step S72), the control unit 50 sets the shift control system 100 to the automatic shift mode (step S82). On the other hand, when the shift control system 100 is set to the direct mode (when the NO branch is made at step S72), it is considered that the rider has not intended to change the mode of the shift control system 100, and therefore the shift control system 100 maintains the state of being set to the direct mode, and the flow returns to the first step S1.

After the shift control system 100 is set to the automatic shift mode in steps S81 and S82, the flow returns to the first step S1.

As described above, according to the flow of the embodiment, when the ignition switch 70 is turned on, the shift control system 100 selects in advance the setting to the direct mode by the mode selection portion 56. Therefore, the vehicle 200 can be easily driven in the direct mode in which the automatic shift mode is automatically returned to the automatic shift mode without requiring a troublesome operation by the vehicle occupant.

[4: other embodiments

In the above embodiment, the mode selection unit 56 determines the mode to be set in advance by selecting the icon on the mode selection interface displayed on the liquid crystal display 10 by the vehicle command switch 30, but for example, if the liquid crystal display is a touch-and-press type touch panel, the vehicle occupant may determine the mode to be set in advance by pressing the icon on the mode selection interface displayed on the touch-and-press type touch panel with a finger.

Description of the numbering

100: speed change control system

56: mode selection module

70: ignition switch

200: vehicle with a steering wheel

300: an automatic transmission.