JP2019011783A - Shift lever type vehicle shift operation device - Google Patents

Abstract

To provide a shift lever type vehicle shift operation device which can achieve a proper and sure shift operation even in a failure of a shift position sensor by a simple constitution.SOLUTION: A shift lever type vehicle shift operation device comprises failure mode setting means 33 for setting a correction shift pattern for performing a shift operation by using only a shift position in which a sensor failure does not occur in a failure of a shift position sensor 31. The correction shift pattern is reported to a driver of a vehicle by failure mode notification means 34.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a shift lever type vehicle shift operation (drive force control) device.

  A vehicle such as an automobile is provided with a vehicle transmission that converts driving force from a driving source and transmits the driving force to a driving shaft. As such a vehicle transmission, there is known a vehicle that performs a shift change between shift positions to which a gear ratio is assigned by operating a shift lever. In this case, the position of the shift lever is detected by a shift position sensor, and a shift by the vehicle transmission is performed according to the detected shift position.

  Also in electric and hybrid vehicles that have an electric motor as a drive source and do not have a transmission that can change the gear ratio, at least the D range (drive range), N range (neutral range), and R range (reverse range). In addition, it has a P range (parking range) and an M range (manual range) that allows the driver to select any acceleration characteristics and deceleration characteristics for the accelerator operation. There has been proposed a shift lever type vehicular shift operation device that is operated.

  In such a shift lever type vehicle shift operation device, it is necessary to ensure an appropriate shift change operation even when the shift position sensor is out of order. For this reason, for example, in Patent Document 1 (Patent No. 4896121), in a device for reading the position of the gear lever, when a part of the sensor for reading the lever position fails, a plurality of sensors of the failed sensor are described. An invention has been proposed in which detection of a shift position to be made by a failed sensor is estimated based on the detection.

Japanese Patent No. 4896121

  However, in the method as in the invention of Patent Document 1, it may be difficult to deal with, for example, when a plurality of adjacent sensors fail, and a complicated control program is required. Also, in preparation for a sensor failure, if a spare sensor is provided and the sensors are multiplexed, the cost increases.

  The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a vehicle shift operation device that can achieve an appropriate and reliable shift operation with a simple configuration even when a shift position sensor fails. Is to provide.

  In order to achieve the above object, the following solution is adopted in the present invention. That is, as described in claim 1, in the vehicle shift operation device that converts the driving force from the drive source and transmits it to the drive shaft, each of the vehicle shift operation devices includes a D range, an R range, and an N range. A plurality of shift positions to which shift characteristics such as a range are assigned, a shift lever that can be selectively arranged for each of the plurality of shift positions, and a shift position at which the shift lever is arranged can be detected. When a shift position that cannot be detected by the shift position sensor occurs, the shift lever is operated within a corrected shift pattern that uses only shift positions other than the shift position that cannot be detected. Change the assignment of shift characteristics to the plurality of shift positions as .

  According to the above solution, when detection by the shift position sensor at some shift positions becomes impossible, the corrected shift pattern of the shift lever is configured only by normal shift positions, so that the operator can Even after the position sensor abnormality occurs, the necessary shift operation can be continued and reliably executed by operating the shift lever. In this case, it is not necessary to use a complicated program for estimating the shift position, and it is not necessary to provide a spare sensor in preparation for an abnormality of the shift position sensor, so that the configuration is not complicated.

  Preferred embodiments based on the above solution are as described in claims 2 and below in the claims. That is, a notification means for reporting the corrected shift pattern is provided (corresponding to claim 2). In this case, the operator can surely know the correction shift pattern, so that an appropriate operation can be reliably performed.

  The vehicle shift operating device includes a main shift gate in which the shift position is disposed and a sub-gate provided separately from the main shift gate, and an abnormality has occurred in a sensor disposed in the main shift gate. Sometimes, a shift position of the modified shift pattern is assigned to the sub-gate (corresponding to claim 3). In this case, since a sub-gate (for example, a manual mode gate) is utilized, a corrected shift pattern can be appropriately configured.

  The vehicle shift operating device includes a gate selection sensor that detects movement of the shift lever between the main shift gate and the sub-gate, and the position at which the shift lever is detected by the gate selection sensor is determined by the corrected shift pattern. It can be used as a shift position at (corresponding to claim 4). In this case, since the correction shift pattern can be formed across the gates, the degree of freedom in the configuration of the correction shift pattern is increased, and it becomes easier to deal with the occurrence of an abnormality in the shift position sensor.

  The sub-gate is a return-type gate in which the shift lever returns to a reference position after operation of the shift lever, and the sub-gate includes holding means capable of holding the shift lever at a position different from the reference position, The position where the shift lever is held by the holding means can be used as a shift position in the modified shift pattern (corresponding to claim 5). In this case, an operational feeling similar to that of the main shift gate can be obtained even with the return-type sub-gate.

  According to the present invention, in a shift lever type vehicle shift operation device (drive force control device), even when an abnormality occurs in the shift position sensor, a necessary shift operation can be continuously executed.

The top view which shows the example of the drive system of the vehicle to which this invention is applied. The simplified top view which shows the shift position which a shift lever can take. The block block diagram which shows an example of the control system of a vehicle. The simplified top view which shows the 1st specific example of a correction shift pattern. The figure which shows the example of a display of a correction shift pattern. The simplified top view which shows the 2nd specific example of a correction shift pattern. The simplified top view which shows the 3rd specific example of a correction shift pattern. The flowchart which shows an example of the control procedure by a control system.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, 1 is an engine, and 2 is a multistage vehicle transmission (automatic transmission). During driving by the engine 1, engine output is transmitted to the left and right drive wheels 6L and 6R via the automatic transmission 2, the propeller shaft 3, the differential gear 4, and the left and right drive shafts 5L and 5R.

  FIG. 2 shows a gate panel 10 that guides movement of the shift lever in the automatic transmission 2. The gate panel 10 is provided on the upper surface of the center console, for example. As shown in the figure, the gate panel 10 is provided with a main shift gate 10A on the left side (passenger seat side) and a sub-gate (manual gate) 10B on the right side (driver seat side). In the main shift gate 10A, a P range, an R range, an N range, and a D range are set as shift positions in series in the front-rear direction and sequentially from the front to the rear. On the right side of the D range, the M range of the manual gate 10B is set. In the present embodiment, the manual gate 10B is a return-type gate having the M gate as a home position (reference position), and is shifted down and up by an operation before and after the shift lever. Yes.

  Each shift position is provided with a shift position sensor for detecting the position of the shift lever. Where the shift lever is located in the P range, R range, N range, D range, or M range. It can be detected. In addition, before and after the M range, a sensor for detecting a shift lever operation before and after the M range is provided. Further, a sensor (gate selection sensor) for detecting gate switching through the gate 10C connecting the main shift gate 10A and the sub-gate 10B is also provided.

  FIG. 3 is a block diagram showing an example of a vehicle control system provided with the control device for the vehicle transmission 2 according to the present invention. As shown, the control system includes a controller (control unit) U configured using a microcomputer. A signal from the shift position sensor 31 is input to the controller U, and the failure of the shift position sensor 31 is determined by the sensor failure determination means 32. Specifically, it is determined at which shift position an abnormality has occurred in detection.

  The controller U is provided with failure mode setting means 33. The failure mode setting means 33 sets the correction shift pattern in response to the failure occurrence determination by the sensor failure determination means 32. Here, the corrected shift pattern is a shift pattern configured by combining only shift positions in which the sensor is normal, excluding the shift position where the sensor abnormality has occurred in the operation unit of the vehicle transmission 2. The failure mode setting unit 33 configures a corrected shift pattern by changing the assignment of the gear ratio to each shift position. After setting the correction shift pattern, the vehicle driver can perform a necessary shift operation within the correction shift pattern.

  The content of the corrected shift pattern is notified to the vehicle driver by the failure mode notification means 34. The failure mode notification means 34 is composed of, for example, a liquid crystal display device, and in this case, the correction shift pattern is displayed as an image on the liquid crystal screen.

  Further, the controller U is provided with automatic operation control means 35. When a shift sensor abnormality occurs, first, the automatic operation control means 35 controls the vehicle mechanism 36 to execute an emergency evacuation automatic operation (for example, stopping on the road shoulder in automatic operation) to ensure safety. After such an automatic operation for emergency evacuation, a correction shift pattern is set.

  FIG. 4 shows a first specific example of the modified shift pattern. In this example, the P range, the R range, and the N range in the initial shift position arrangement (see FIG. 2) have become unusable due to sensor abnormalities, so the front of the D range and the M range in the original shift position arrangement. Neutral N, reverse R, and drive D are assigned to the operation to and the operation to the rear of the M range, respectively. In this case, since the right gate (subgate) is a return type, the initial M range is the home position H of the return type gate.

  Note that the modified shift pattern of FIG. 4 can be employed even when there is an abnormality in the D-range sensor. That is, if a gate selection sensor that detects the switching between the left and right gates is used as a D-range sensor, the modified shift pattern of the first specific example can be configured even if the D-range sensor has a failure. .

  In FIG. 5, the example of a display of the correction shift pattern by the failure mode alerting means 34 is shown. In this display example, the corrected shift pattern of the first specific example is displayed as an image. Accordingly, the driver of the vehicle can intuitively grasp the correction shift pattern.

  FIG. 6 shows a second specific example of the modified shift pattern. In this example, since all the shift positions of the main shift gate 10A in the initial shift position arrangement shown in FIG. 2 are unusable, the modified shift pattern is configured using only the manual gate 10B in the initial shift position arrangement. Has been. Specifically, the initial M range is the home position H, reverse R is assigned to the operation forward from the home position H, and drive D is assigned to the operation backward from the home position H.

  FIG. 7 shows a third specific example of the modified shift pattern. This example is the same as the second specific example in that the modified shift pattern is configured using only the right gate (original sub-gate). However, the right gate includes lock means 21, 22 is different from the second specific example in that 22 is provided. As a result, the shift lever can be held by the locking means 21 in front of the original M range, and can be held by the locking means 22 in the rear of the original M range. Position can be configured. Therefore, in this example, a stationary-type correction shift pattern having an R range, an N range, and a D range from the front is configured on the right gate.

  Next, an example of a control procedure by the control system will be described with reference to FIG.

  In step S1, the state of the shift position sensor is detected, and in the subsequent step S2, it is determined whether there is an abnormality in the shift position sensor. If it is determined that there is no abnormality in the shift position sensor, the process is terminated as it is. If there is an abnormality in the shift position sensor, the process proceeds to step S3.

  In step S3, an instruction to stop the vehicle by automatic driving is issued. In subsequent step S4, it is determined whether the vehicle stop has been completed, and steps S3 and S4 are repeated until the vehicle stop is completed.

  When the vehicle stop is completed, the process proceeds to step S5, and the failure mode is set (correction shift pattern is set). In the subsequent step S6, the failure mode is displayed (correction shift pattern is displayed), and the control for one cycle is completed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range described in the claim, an appropriate change is possible. For example, the present invention may be a vehicle provided with a shift lever type vehicle shift operation device that shift-shifts between a plurality of shift positions by operating a shift lever, such as an electric vehicle or a hybrid vehicle that does not have an automatic transmission. It is applicable even to other vehicles. Of course, the present invention can be applied to a shift operating device having no P range or M range or a shift operating device not disclosed in the embodiment, for example, a shift operating device having a B range that strengthens vehicle deceleration with respect to accelerator operation.

  The present invention can be used for a shift lever type vehicle shift operating device.

U controller 1 engine 2 vehicle transmission 6L, 6R drive wheel 10 gate panel 10A main shift gate 10B sub gate 10C gate 21 lock means 22 lock means 31 shift position sensor 32 sensor failure judgment means 33 failure mode setting means 34 failure mode display means 35 Automatic operation control means 36 Vehicle mechanism

Claims (5)

In a vehicle shift operation device that converts or controls a driving force from a driving source and transmits the driving force to a driving shaft,
The vehicle shift operating device is:
A plurality of shift positions each assigned with shift characteristics such as D range, N range, and R range,
A shift lever that can be selectively arranged for each of the plurality of shift positions;
A shift position sensor capable of detecting at which shift position the shift lever is disposed;
When a shift position that cannot be detected by the shift position sensor occurs, the vehicle shift operation device is operated in a modified shift pattern that uses only shift positions other than the shift position that cannot be detected. Furthermore, a shift lever type vehicle shift operating device that changes assignment of the gear ratio to the plurality of shift positions. In the vehicle shift operation device according to claim 1,
A shift lever type vehicular shift operating device provided with an informing means for informing the corrected shift pattern. In the vehicle shift operation device according to claim 1 or 2,
The vehicle shift operation device includes a main shift gate in which the shift position is disposed, and a sub-gate provided separately from the main shift gate,
A shift lever type vehicle shift operation device that assigns a shift position of the correction pattern to the sub-gate when an abnormality occurs in a sensor disposed in the main shift gate. In the vehicle shift operation device according to claim 3,
The vehicle shift operation device includes a gate selection sensor that detects movement of the shift lever between the main shift gate and the sub-gate,
A shift lever type vehicle shift operation device that uses a position at which the shift lever is detected by the gate selection sensor as a shift position in the corrected shift pattern. In the vehicle shift operating device according to claim 3 or 4,
The sub-gate is a return-type gate in which the shift lever returns to a reference position after operation of the shift lever,
The sub-gate includes holding means capable of holding the shift lever at a position different from the reference position,
A shift lever type vehicle shift operating device in which a position where the shift lever is held by the holding means can be used as a shift position in the modified shift pattern.

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