JP2010242944A - Shift control device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shift control device for a vehicle capable of shift operation as intended by a driver without complicating the operation. <P>SOLUTION: The vehicle includes a momentary select lever type shift operation device 10 having a D-position for selecting an automatic shift mode and a S-position for selecting a sequential shift mode as operation positions, and a paddle switch type shift operation device 20 having paddles 21, 22 for up-/down-shift as operation parts. Herein, an electronic control unit 25 temporarily enables manual up-/down-shift in response to the operation of the paddles 21, 22 during selecting the automatic shift mode and selects a temporary manual shift mode for automatically resetting the automatic shift mode in response to the establishment of resetting conditions. The electronic control unit 25 forcibly resets the automatic shift mode in response to the detection of the operation of a select lever 11 to the D-position during selecting the temporary manual shift mode, without waiting for the establishment of the resetting conditions. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a shift mode of an automatic transmission, an automatic shift mode that automatically changes the gear position according to the traveling state of the vehicle, a sequential shift mode that enables manual up / down shift, and a manual up / down. The present invention relates to a shift control device for a vehicle configured to be able to select a temporary manual shift mode in which a shift is temporarily possible.

  2. Description of the Related Art In recent years, many shift operation devices for in-vehicle automatic transmissions have been put into practical use that employ a sequential shift mode that enables manual up / down shift in addition to an automatic shift mode that automatically shifts. As a shift operation device for performing up / down shift operations in the sequential shift mode, an operation position for the sequential mode (manual range operation position) is provided on the select lever for shift range selection, and the manual range operation position is Some have an operation position for up / downshifting at the front and rear. There are also steering wheel switches with up / down shift buttons and paddle switches.

  Conventionally, Patent Document 1 discloses a select lever type shift operation device having an operation position for selecting an automatic transmission mode and an operation position for selecting a sequential shift, an upshift operation unit, and a downshift operation unit. A shift control device for a vehicle including a paddle switch type shift operation device having

  The former select lever type shift operating device 50 manually selects the range position of the automatic transmission by operating the select lever 52 along the shift gate 51 configured as shown in FIG. It is supposed to be. In the shift operation device of FIG. 4A, the parking range “P”, the reverse range “R”, the neutral range “N”, the drive range “D”, and the sequential shift range “S” are set as range positions. ing. When the sequential shift range “S” is selected, the select lever 52 is tilted back and forth to allow manual upshift and downshift.

  Further, the latter paddle switch type shift operation device 60 includes two paddles 62 and 63 provided on the steering 61 of the vehicle, as shown in FIG. 4B. Among these, the paddle 62 with the symbol “-” is a downshift paddle for performing a downshift through the operation, and the paddle 63 with the symbol “+” is the operation of the paddle 63. It is an upshift paddle for upshifting.

  Normally, in such a speed change control device, a sequential shift range is selected by the select lever 52, and then the select lever 52 is operated back and forth, or the paddles 62 and 63 are operated, thereby performing manual up / down shift. It becomes possible. In addition, in the speed change control device described in the document 1, even when the operation of the paddles 62 and 63 is performed in a state where the drive range is selected by the select lever 52, the manual operation corresponding to the operation of the paddles 62 and 63 is performed. It is configured to shift to a temporary manual shift mode that temporarily enables up / downshifting. The temporary manual shift mode is automatically canceled when a return condition defined by the accelerator depression time after the start of the temporary manual shift mode is satisfied, and the automatic shift mode is restored.

JP 2008-115964 A

  As described above, in the above conventional shift control device, the manual up / down shift operation can be started by only operating the paddles 62 and 63 without operating the select lever 52 at all. Therefore, the engine brake can be applied only with a simple operation. However, the temporary manual shift mode in such a conventional shift control device is automatically released only when the return condition is satisfied, and the driver will return to the automatic shift mode after selecting the temporary manual shift mode. However, there is no way to realize the intention, and there is no choice but to wait for the temporary manual shift mode to be automatically canceled when the return condition is satisfied.

  The present invention has been made in view of such a situation, and the problem to be solved is a shift of a vehicle that can perform a shift operation in accordance with a driver's intention without causing complication of the operation. It is to provide a control device.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a first operation position for selecting an automatic shift mode for automatically changing a gear position according to a traveling state of a vehicle, and manual up / down. The operation position includes a second operation position for selecting a sequential shift mode that enables shifting, and the operation element automatically returns to the neutral position in response to unloading of the operation force to the operation element. A first shift operation device configured to perform the operation, and a second shift operation device provided separately from the first shift operation device and having an operation unit for upshifting and an operation unit for downshifting, A manual up / down shift according to the operation of the operation unit when the automatic transmission mode is selected, and automatically changing automatically when a specified return condition is satisfied. In the vehicle shift control device for selecting the temporary manual shift mode to return to the mode, the return condition is determined in response to detection of an operation of the first shift operation device to the first operation position when the temporary manual shift mode is selected. The gist of the present invention is to include a forced return means for forcibly returning to the automatic transmission mode without waiting for the establishment of the above.

  In the above configuration, when the operation unit for up / down shift of the second shift operation device is operated when the automatic transmission mode is selected, the mode is shifted to the temporary manual transmission mode, and the manual up / down shift operation is temporarily performed. It becomes possible. Such a temporary manual shift mode is normally automatically released after a return condition defined by, for example, the accelerator depression time after the start of the mode is satisfied, so that the automatic shift mode is restored. It has become. However, even before the return condition is satisfied, if the first shift operation device is operated to the first operation position for selecting the automatic shift mode, the temporary manual mode is forcibly released and the automatic shift is performed. Return to the mode.

  Therefore, in the above configuration, it is possible to return from the intentional temporary manual mode to the automatic transmission mode by the driver. Moreover, such a configuration can be realized without adding a new operation position or operation unit to the shift operation device. Also, the operation for returning to the automatic transmission mode is easy for the driver to understand intuitively. Therefore, according to the above-described configuration, it is possible to perform a shift operation in accordance with the driver's intention without complicating the operation.

  In this case, the detection of the operation of the first shift operating device to the first operation position related to the forced return from the temporary manual shift mode to the automatic shift mode is performed as described in claim 2. It is better to start from the beginning of In addition, as described in claim 3, when it is determined that the first shift operation device has failed, the forced return means is configured to stop the forced return from the temporary manual shift mode to the automatic shift mode. Thus, it becomes possible to avoid the shift mode unintended by the driver due to the malfunctioning shift operation device.

  The vehicle shift control device according to the present invention is the first shift operation device of the so-called shift-by-wire system that is only electrically connected to the transmission. Application to a shift control device for a vehicle in which the shift operation device and the second shift operation device are configured is preferable. Further, according to the present invention, as described in claim 5, the first shift operation device is configured as a select lever type shift operation device, and the second shift operation device is a paddle switch type or It can be configured as a shift control device for a vehicle configured as a button switch type shift operation device.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows typically the whole structure about one Embodiment of the transmission control apparatus of the vehicle of this invention. The flowchart which shows the process sequence of the temporary manual transmission mode switching control routine employ | adopted as the same embodiment. The flowchart which shows the process sequence of the temporary manual transmission mode cancellation | release control routine employ | adopted as the same embodiment. (A), (b) is the schematic which each shows typically the structure of the two systems of shift operation apparatuses employ | adopted as the transmission control apparatus of the conventional vehicle.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a vehicle shift control device according to the present invention will be described in detail with reference to FIGS.
FIG. 1 shows the overall configuration of a vehicle transmission control apparatus according to this embodiment. As shown in the figure, this shift control device is provided with two shift operation devices relating to a vehicle shift operation, that is, a momentary select lever shift operation device 10 and a paddle switch type shift operation device 20. The momentary select lever type shift operation device 10 and the paddle switch type shift operation device 20 are both configured as a so-called shift-by-wire type shift operation device that is electrically connected to the transmission. ing.

  The momentary select lever shift operating device 10 is configured to switch the range position by operating the select lever 11. The operation position of the select lever 11 includes a reverse (R) position for selecting a reverse range, a neutral (N) position for selecting a neutral range, a drive (D) position for selecting a drive range, and a sequential. A sequential shift (S) position for selecting a shift range is set. The select lever 11 is mechanically biased, and is configured to automatically return to the neutral position M when the operating force is unloaded.

  In each operation position of the select lever 11 of the momentary select lever type shift operating device 10, there are four switches for detecting the operation of the select lever 11 to the operation position, that is, an R switch 12, an N switch 13, a D switch 14, and An S switch 15 is provided. The R switch 12 is configured to output an R signal according to the operation of the select lever 11 to the R position, and the N switch 13 is configured to output an N signal according to the operation of the select lever 11 to the N position. . The D switch 14 is configured to output a D signal according to the operation of the select lever 11 to the D position, and the S switch 15 is configured to output an S signal according to the operation of the select lever 11 to the S position. Yes.

  On the other hand, the paddle switch type shift operating device 20 includes two paddles 21 and 22 provided on the steering 19 of the vehicle. Among these, the paddle 21 with a “−” sign is a downshift paddle, and the paddle 22 with a “+” sign is an upshift paddle. At the base of each paddle 21, 22, a switch for detecting the operation of each paddle 21, 22 is provided, that is, a down switch 23 and an up switch 24, respectively. The down switch 23 is configured to output a down signal according to the operation of the paddle 21, and the up switch 24 is configured to output an up signal according to the operation of the paddle 22.

  The signals of the switches (12 to 14, 23, 24) of the momentary select lever type shift operating device 10 and the paddle switch type shift operating device 20 are input to the electronic control unit 25. The electronic control unit 25 that controls the shift control of the vehicle includes a central processing unit (CPU) that performs various calculation processes related to the shift control, a read-only memory (ROM) that stores programs and data used for the shift control, A random access memory (RAM) that temporarily stores CPU calculation results, sensor detection signals, and the like, and an input / output port (I / O) that exchanges signals with the outside are provided.

  In the present embodiment, three modes of an automatic shift mode, a sequential shift mode, and a temporary manual shift mode are set as control modes (shift modes) relating to vehicle shift control of the electronic control unit 25. In the automatic shift mode, the electronic control unit 25 automatically shifts the automatic transmission based on the vehicle speed and the engine load. In the sequential shift mode and the temporary manual shift mode, the electronic control unit 25 changes the shift range manually according to the operation status of the paddle switch type shift operating device 20.

Next, switching of the shift mode in the present embodiment will be described.
The electronic control unit 25 switches the shift mode according to the operation of the momentary select lever type shift operating device 10 and the paddle switch type shift operating device 20 described below. That is, the electronic control unit 25 selects the automatic transmission mode according to the operation of the select lever 11 to the drive position, and selects the sequential shift mode according to the operation of the select lever 11 to the sequential shift position. The electronic control unit 25 raises or lowers the shift range of the automatic transmission step by step in response to reception of an up signal or a down signal from the paddle switch type shift operation device 20 when the sequential shift mode is selected.

  In addition, the electronic control unit 25 temporarily cancels the automatic shift mode upon receiving an up signal or a down signal from the paddle switch type shift operating device 20 during the selection of the automatic shift mode, and enters the temporary manual shift mode. I try to migrate. Further, the electronic control unit 25 cancels the temporary manual shift mode and returns to the automatic shift mode on condition that the elapsed time after the start of the temporary manual shift mode has reached a specified return time.

  The above is the normal shift mode switching. In such a shift control device of this embodiment, by adding the temporary manual shift mode, it is possible to start a manual up / down shift only by operating the paddles 21 and 22 without operating the select lever 11 at all. Therefore, the engine brake can be applied only with a simple operation. However, the temporary manual shift mode is automatically canceled only when the return condition is satisfied only by switching the normal shift mode, and the driver enters the automatic shift mode after selecting the temporary manual shift mode. There is no way to realize that intention when trying to return.

  Therefore, the vehicle shift control device of the present embodiment provides means for returning from the temporary manual shift mode to the automatic shift mode as follows. In other words, in this embodiment, the electronic control unit 25 does not wait for the return time, which is a return condition, to elapse when the D signal is received from the momentary select lever type shift operating device 10 during the selection of the temporary manual shift mode. Thus, the temporary manual shift mode is canceled and the forced return to the automatic shift mode is performed. Therefore, it is possible to return from the intentional temporary manual mode to the automatic transmission mode by the driver. In addition, such a configuration can be realized without adding a new operation position or operation unit to both shift operation devices (10, 20), and the driver can also return to the automatic transmission mode. It is easy to understand intuitively.

  FIG. 2 shows a flowchart of a temporary manual shift mode switching control routine related to switching to the temporary manual shift mode. The processing of this routine is repeatedly performed periodically by the electronic control unit 25 while the ignition switch is on.

  When the processing of this routine is started, the electronic control unit 25 first checks in step S10 whether or not the drive range for the automatic transmission mode is currently selected. If the drive range is not selected here (S10: NO), the electronic control unit 25 ends the processing of this routine as it is.

  If the drive range is being selected (S10: YES), the electronic control unit 25 proceeds to step S20. In step S20, whether or not an up signal or a down signal is input, that is, the operation of the paddle switch type shift operating device 20 is determined. Check for presence. If there is no input of an up signal or a down signal (S20: NO), the electronic control unit 25 ends the process of this routine while maintaining the drive range. On the other hand, if there is an input of an up signal or a down signal (S20: YES), the electronic control unit 25 proceeds to step S30, where the automatic shift mode is canceled and the shift mode is changed to the temporary manual shift mode. The current routine is terminated after switching.

  FIG. 3 shows a flowchart of a temporary manual shift mode release control routine related to release of the temporary manual shift mode. The processing of this routine is also repeatedly performed periodically by the electronic control unit 25 while the ignition switch is on.

  When the processing of this routine is started, the electronic control unit 25 first checks in step S50 whether or not the temporary manual transmission mode is currently selected. If the temporary manual shift mode is not selected here (S50: NO), the electronic control unit 25 ends the processing of this routine as it is.

  If the temporary manual shift mode is being selected (S50: YES), the electronic control unit 25 proceeds to step S60, and confirms in step S60 whether the return condition is satisfied. If the return condition is satisfied here (S60: YES), the electronic control unit 25 proceeds to step S90, after releasing the temporary manual shift mode and switching the shift mode to the automatic shift mode in step S90. Then, the processing of this routine is finished.

  On the other hand, if the return condition is not satisfied (S60: NO), the electronic control unit 25 proceeds to step S70, and in step S70, it is confirmed whether or not the momentary select lever shift operating device 10 is normal. If a failure is confirmed in the momentary select lever shift operating device 10 (S70: NO), the electronic control unit 25 ends the current routine while maintaining the temporary manual shift mode.

  If the momentary select lever type shift operating device 10 is normal (S70: YES), the electronic control unit 25 proceeds to step S80, and in step S80, the presence / absence of input of the D signal, that is, the momentary select lever type shift operation is performed. Whether or not the select lever 11 is operated to the drive position of the apparatus 10 is confirmed. This confirmation is performed only when the temporary manual shift mode is being selected (S50: YES). The operation of the momentary select lever shift operating device 10 to the drive range is detected by the temporary manual shift mode. It starts at the beginning of the mode.

  If there is no D signal input (S80: NO), the electronic control unit 25 terminates the current routine while maintaining the temporary manual shift mode. If the D signal is input (S70: YES), the electronic control unit 25 proceeds to step S90. In step S90, after canceling the temporary manual shift mode and switching the shift mode to the automatic shift mode, The process of this routine is terminated.

  In the embodiment described above, the momentary select lever type shift operation device 10 corresponds to the first shift operation device, and the paddle switch type shift operation device 20 corresponds to the second shift operation device. The select lever 11 corresponds to the operator of the first shift operation device, and the paddles 21 and 22 correspond to the operation unit for up / down shift of the second shift operation device. Further, the drive position of the momentary select lever type shift operation device 10 corresponds to the first operation position, and the sequential shift position corresponds to the second operation position. In addition, in the present embodiment, the electronic control unit 25 has a configuration corresponding to the forced return means.

According to the vehicle shift control apparatus of the present embodiment described above, the following effects can be obtained.
In the present embodiment, the following two shift operation devices are provided. That is, one of such shift operation devices includes a D position for selecting an automatic shift mode that automatically changes the gear position according to the traveling state of the vehicle, and a sequential shift that enables manual up / down shift. The momentary select lever type shift operation device 10 has an S position for selecting a mode as an operation position. The momentary select lever type shift operating device 10 is configured such that the select lever 11 automatically moves back to the neutral position M in response to the unloading of the operating force to the select lever 11 which is an operator. Yes. The other is a paddle switch type shift operation device 20 which is provided independently of the momentary select lever type shift operation device 10 and has paddles 21 and 22 for up / down shift as an operation portion. In the present embodiment, the electronic control unit 25 temporarily enables manual up / down shift according to the operation of the paddles 21 and 22 when the automatic transmission mode is selected, and establishes a specified return condition. The temporary manual shift mode for automatically returning to the automatic shift mode is selected in response to this. In addition, in this embodiment, the electronic control unit 25 switches to the automatic transmission mode without waiting for the return condition to be established in response to detection of the operation of the select lever 11 to the D position when the temporary manual transmission mode is selected. Forced to return. In this embodiment, when the paddles 21 and 22 for up / down shifting of the paddle switch type shift operating device 20 are operated when the automatic transmission mode is selected, the temporary manual transmission mode is entered, and the manual up / down operation is performed. Shift operation is temporarily possible. Such a temporary manual shift mode is normally automatically released after the return condition defined by the accelerator depression time is satisfied, and the automatic shift mode is restored. However, even before the return condition is satisfied, if the select lever 11 is operated to the D position for selecting the automatic transmission mode, the temporary manual mode is forcibly released and the automatic transmission mode is restored. Will be made. Therefore, in the present embodiment, it is possible to return from the intentional temporary manual mode to the automatic transmission mode by the driver. Moreover, such a configuration can be realized without adding a new operation position or operation unit to both shift operation devices (10, 20). Also, the operation for returning to the automatic transmission mode is easy for the driver to understand intuitively. Therefore, according to the present embodiment, it is possible to perform a shift operation in accordance with the driver's intention without complicating the operation.

In addition, the said embodiment can also be changed and implemented as follows.
In the above embodiment, the condition for automatic return from the temporary manual shift mode to the automatic shift mode is defined by the elapsed time from the start of the temporary manual shift mode. Not limited to this, it may be changed as appropriate. For example, the return condition can be defined by the depression time of the accelerator pedal after the temporary manual shift mode is started.

  In the above embodiment, the shift range of the automatic transmission is raised or lowered step by step in accordance with the operation of the up / down shift paddles 21 and 22 in the sequential shift mode and the temporary manual shift mode. Accordingly, the shift stage of the automatic transmission may be raised or lowered directly.

  In the above embodiment, the paddle switch type shift operation device 20 is adopted as the second shift operation device, but the button switch type shift configured to perform up / down shift by operating the button switch. An operating device may be employed as the second shift operating device. In addition, any shift operation device having an upshift and downshift operation unit can be employed as the second shift operation device.

  In the above embodiment, the momentary select lever type shift operation device is configured as having four operation positions “R”, “N”, “D”, and “S”, but the number of operation positions of the shift operation device The layout is not limited to this, and any shift operation device configured as follows can be adopted as the first shift operation device. That is, the first operation position for selecting the automatic transmission mode and the second operation position for selecting the sequential shift mode are provided as the operation positions, and the operation force is unloaded according to the unloading of the operation force to the operation element. Any operation element may be used as long as it is configured to automatically return to the neutral position.

  In the above embodiment, when there is a failure in the momentary select lever type shift operating device 10, the temporary manual shift mode release in response to the reception of the D signal and the shift mode switch to the automatic shift mode are stopped. It was. Of course, when the reliability of the momentary select lever type shift operating device 10 is sufficiently high, such processing may be omitted.

  In the above embodiment, both shift operation devices are configured as shift-by-wire shift operation devices, but one or both shift operation devices are not shift-by-wire shift control devices. However, the present invention is applicable.

  The present invention can be embodied as a shift control device in a vehicle including a stepped automatic transmission, a vehicle including a continuously variable transmission, a hybrid vehicle, an electric vehicle, or the like.

  DESCRIPTION OF SYMBOLS 10 ... Momentary select lever type shift operating device (1st shift operating device), 11 ... Select lever (operator), 12 ... R switch, 13 ... N switch, 14 ... D switch, 15 ... S switch, 19 ... Steering, DESCRIPTION OF SYMBOLS 20 ... Paddle switch type shift operation apparatus, 21, 22 ... Paddle (operation part), 23 ... Up switch, 24 ... Down switch, 25 ... Electronic control unit (forced reset means).

Claims (5)

A first operation position for selecting an automatic shift mode that automatically changes the gear position according to the traveling state of the vehicle, and a second operation for selecting a sequential shift mode that allows manual up / down shift. And a first shift operating device configured to automatically return to the neutral position in response to unloading of the operating force to the operating element. A second shift operation device provided separately from the shift operation device and having an operation unit for upshifting and an operation unit for downshifting, and operating the operation unit when the automatic transmission mode is selected. In response to the vehicle, a manual up / down shift can be temporarily enabled and a temporary manual shift mode that automatically returns to the automatic shift mode when a prescribed return condition is satisfied is selected. In fast control device,
Forced return to forcibly return to the automatic shift mode without waiting for the return condition to be satisfied in response to detection of an operation of the first shift operating device to the first operation position when the temporary manual shift mode is selected A vehicle speed change control apparatus comprising: means. The vehicle shift control device according to claim 1, wherein the detection of the operation of the first shift operation device to the first operation position is started when the temporary manual shift mode is started. The forced return means stops forced return to the automatic shift mode in response to detection of an operation to the first operation position when it is determined that the first shift operation device has failed. Alternatively, the transmission control device for a vehicle according to 2. The vehicle shift control device according to any one of claims 1 to 3, wherein the first shift operation device and the second shift operation device are electrically connected only to a transmission. The first shift operation device is configured as a select lever type shift operation device, and the second shift operation device is configured as a paddle switch type or button switch type shift operation device provided in a steering of a vehicle. The transmission control apparatus for a vehicle according to any one of claims 1 to 4.

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