JPH0610030U - Vehicle display - Google Patents

Abstract

(57) [Summary] [Purpose] A display device that displays the target driving state during a gear shift enables smooth running with less gear shift shock. [Structure] A vehicle speed and a shift position are detected by an engine rotation speed detecting means 1 and a shift position detecting means, and a clutch meet target engine at a clutch meet time when a clutch meet target engine rotating speed calculating means 3 shifts up based on the detected vehicle speed and shift position Since the rotational speed is calculated and the target engine rotational speed is displayed on the display means 4, the driver can easily and accurately match the actual engine rotational speed with the target engine rotational speed during clutch meet. Therefore, it becomes possible to drive the vehicle smoothly with less shift shock.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display device for a vehicle equipped with a manual transmission, and more particularly to a device for displaying a target driving state during a gear shift.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, various vehicle displays have been proposed to reduce the burden on the driver of a vehicle equipped with a manual transmission for gear shifting operations and to enable smooth running, for example, Japanese Patent Laid-Open No. 61-140869. As in the vehicle display device disclosed in the publication, the relationship between the engine rotation speed and the shift gear position of the transmission is displayed two-dimensionally, and a shift-up request or a shift-down request is displayed from the current shift gear position to drive the vehicle. There is one that can give a shift instruction to a person.

[0003]

[Problems to be solved by the device]

 However, in the configuration of such a conventional display device, only whether or not to shift up or down is to be displayed, and the driver does not select the shift gear position and measure the timing of shift change. Although possible, the target engine speed during clutch meet, which is important for the smooth running of the vehicle, was not displayed. Therefore, in order to make a smooth shift change, the driver's peculiar technology is largely relied upon.For example, for beginners and those with insufficient technical knowledge about shift change, the engine speed during clutch change during shift change However, the shift shock caused by too low or too high a target engine rotation speed during clutch meet, which allows smooth shift change, was unavoidable. Such a gear shift shock is uncomfortable for passengers, especially passengers, and also causes a great deal of damage to the transmission and drive system devices of the vehicle, resulting in shortening the life of the vehicle. .

The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicular display device having a configuration capable of reducing a shift shock during a shift change.

[0005]

[Means for Solving the Problems]

 Therefore, the present invention is provided with a manual speed changer connected to an engine through a mechanical clutch, and in a vehicle in which a speed change operation is performed manually, as shown in FIG. 1, an engine speed detection for detecting an engine speed is performed. Means 1, shift gear position detecting means 2 for detecting the shift gear position, and engine speed detected by the engine speed detecting means 1 and vehicle data stored in advance based on the vehicle data stored in advance, shift up and shift from the shift gear position. The target engine rotation speed calculation means 3 for calculating the target engine rotation speed at each clutch meet when downshifting, and the target engine rotation speed at each clutch meet when shifting up and down are detected by the engine rotation speed detection. The actual engine rotation speed detected by means 2 And a configuration in which a display unit 4 for displaying.

[0006]

[Action]

 With this configuration, the vehicle speed is detected from the engine speed, the shift gear position, the vehicle data stored in advance, or a vehicle speed sensor provided separately, and the vehicle speed and the vehicle speed are stored in advance. It is possible to calculate the target engine speed at each clutch meet when shifting up or down from the current shift gear position based on the existing vehicle data, and display the target engine speed at each clutch meet together with the actual engine speed. Therefore, the driver can easily and accurately match the actual engine rotation speed to the target engine rotation speed at each clutch meet when upshifting or downshifting.

[0007]

【Example】

 An embodiment according to the present invention will be described below with reference to the drawings. 2 shows a block diagram according to this embodiment, and FIG. 3 shows a configuration according to this embodiment. In this embodiment, a vehicle speed sensor is used as a means for detecting a vehicle speed. That is, a manual transmission 30 is attached to the engine 10 via a mechanical clutch 20, and its output shaft is connected to a propeller shaft 40 and is connected to an axle shaft (not shown).

The manual transmission 30 includes a shift gear position sensor 31 that detects a shift gear position, and a vehicle speed sensor 32 that detects a rotation speed of an output shaft of the manual transmission 30. The output signal of the vehicle speed sensor 32 is sent to the control module 50, and the vehicle speed VSP is calculated based on the signal and vehicle data stored in advance (for example, each shift gear ratio, final reduction ratio, tire radius, etc.). . The shift gear position sensor 31 detects the shift gear position detecting devices 31a, 31b, 31c, 31d, and 31e of the first, second, third, fourth, and fifth gears, and the neutral position. It is composed of a neutral position sensor 31f.

An engine speed sensor 33 is attached to the crank pulley 11 of the engine 10, and is sent to the control module 50 as a crank angle signal to be converted into an engine speed. Here, the engine speed sensor 33 and the control module 50 constitute an engine speed detecting means. The engine rotation speed is displayed on the rotation speed display device 43 provided in the driver's cab.

In addition, the output signal of the vehicle speed sensor 32 and the output signal of the shift gear position sensor 31 are input to the control module 50. On the other hand, the driver's cab is provided with a shift lever 41 that is manually operated by the driver at the time of a shift change and a clutch pedal that performs an intermittent operation of the mechanical clutch. To be able to do. Further, a rotation speed display device 43 for displaying the actual engine rotation speed is provided, and a clutch meet target engine rotation speed display device 44 for notifying the driver of the target engine rotation speed at the time of clutch meet at the time of a shift change, For example, as shown in FIG. 3, it is provided around the rotation speed scale 43b engraved on the rotation speed display device 43 for displaying the actual engine rotation speed. The clutch engine target engine rotation speed display device 44 is composed of, for example, a fluorescent display tube such as a light emitting diode. By making the light emitting diode emit light in accordance with the clutch engine target clutch rotation speed, The rotation speed can be confirmed by the driver. In the present embodiment, the target engine rotation speed display device 44 during clutch meet comprises, for example, shift-up display segments u1 to u36 and shift-down display segments d1 to d36. It should be noted that the number of constituent display segments is not limited to that in this embodiment, and may be changed as appropriate so that the driver can easily confirm the target engine rotation speed during clutch meet. Further, it is preferable that the display segments d1 to d36 and the display segments u1 to u36 are color-separated to facilitate the driver's confirmation. For example, the shift-up display segments u1 to u36 may be illuminated in blue and the shift-down display segments d1 to d36 may be illuminated in red.

Next, the flow chart shown in FIG. 5 executed by the control module 50 of this embodiment will be described. In step 1 (denoted as S1 in FIG. 5, the same applies hereinafter), the vehicle speed VSP is calculated and read based on the signal of the vehicle speed sensor 32 and the vehicle data stored in advance. If the vehicle speed VSP = 0, the process exits this flowchart. If the vehicle speed VSP> 0 Km / h, proceed to step 2. Here, step 1 and the vehicle speed sensor 32 constitute a vehicle speed detecting means.

In step 2, the current shift gear position P is read by the signal from the shift gear position sensor 31. Here, the step 2 and the shift gear position sensor 31 constitute a shift gear position detecting means. In step 3, the clutch for shifting up from the current shift gear position P based on the vehicle speed VSP read in step 1, the current shift gear position P read in step 2, and the vehicle data stored in advance The target engine rotation speed N1 at the time of the meet and the target engine rotation speed N2 at the time of the clutch meet at the time of downshifting are calculated. Here, step 3 corresponds to the target engine rotation speed calculation means during clutch meet.

In step 4, the shift-up display segments u1 to u36 of the clutch-meeting target engine rotation speed display device 44 corresponding to the clutch-meeting target engine rotation speed N1 for upshifting calculated in step 3 are displayed. Turn on some of them. At the same time, a part of the shift-down display segments d1 to d36 corresponding to the target engine rotation speed N2 during clutch down when shifting down calculated in step 3 is turned on. Here, step 4 and the clutch engine target engine rotation speed display device 44 constitute clutch engine target engine rotation speed display means.

Next, as shown in FIG. 4, a method of displaying the target engine rotation speed at the time of clutch meet will be described by way of example. For example, the shift gear position currently running is set to the third gear position, and the actual engine rotation speed is set. Is set to 3000r.pm. Next, if the target engine rotation speed at the time of clutch meet to the 4th speed gear when shifting up from this state, for example, 2000 rpm is calculated in step 3, the shift-up display segment corresponding to 2000 rpm is displayed. Turn on u11 in blue. At the same time, if the target engine speed during clutch engagement to the 2nd speed gear during downshifting, for example 4000 rpm, is calculated in step 3, the downshifting segment d21 corresponding to 4000 rpm is lit in red. Let That is, the driver holds the target engine rotation speed during clutch up during shift up and the target engine rotation during clutch down during shift down on both sides of the pointer 43a of the engine rotation speed display device 43 that indicates the actual engine rotation speed. By displaying the speed and lit, it is possible to easily check the target engine speed during clutch meet for a smooth shift change. When shifting up, the engine 10 and the manual transmission 30 are disconnected by the mechanical clutch 20, and the driver lights up in blue as shown in FIG. 4 (A). By aligning the pointer 43a indicating the actual engine rotation speed with the displayed shift-up display segment u11, a smooth shift-up operation with little shift shock can be performed. Similarly, at the time of downshifting, as shown in FIG. 4 (B), by adjusting the pointer 43a indicating the actual engine speed to the downshifting segment d21 which is lit in red, a smooth shift can be achieved. Shift down operation with less shock can be performed.

In the present embodiment, as described above, only each display segment corresponding to the target engine rotation speed at each clutch meet is turned on. However, actually, the actual engine rotation speed and the clutch at the time of shift change are turned on. Any display method can be used so that the target engine rotation speed during the meet can be confirmed. Next, in step 5, the driver performs a shift change operation while checking the target engine speed during clutch meet displayed in step 4 in order to match the actual engine speed with the target engine speed during clutch meet. In order to be able to do so, it is necessary to maintain the lighting of the target engine speed display segment in step 4 for a certain period of time. For this reason, the neutral position sensor 31f that always passes through at the time of a shift change is used. The target engine rotation speed display segment can be kept lit for a certain period of time after the signal is read.

After that, the steps 1 to 5 are repeated each time the shift is changed. According to the present embodiment, when the driver performs a shift change, the driver can confirm the target engine rotation speed at the time of clutch meet when shifting up or down, by illuminating the display segment, and the mechanical clutch Since the actual engine rotation speed can be easily and accurately adjusted to the lighting position of the display segment when the connection with the manual transmission is disconnected, a smooth shift change with less shift shock can be performed.

It should be noted that the vehicle speed can be substantially detected based on the engine rotation speed, the shift position, the vehicle data stored in advance, and the like. However, as in the present embodiment, the vehicle speed can be detected as an application range. If a wide vehicle speed sensor is used, it is possible to detect the vehicle speed during coasting at a neutral position, etc. (For example, when the neutral signal is for a long time, the lighting display is maintained until the next shift position signal is input). Further, although the analog type engine rotation speed display device is used in this embodiment, the engine rotation speed display device of another system may be used. Further, although the fluorescent display tube is used as the target engine rotation speed display device during clutch meet, a pointer type display tube may be used instead of the fluorescent display tube. Further, in the present embodiment, the actual engine rotation speed is detected by the engine rotation sensor 33 and displayed on the engine rotation speed display device 43 via the control module 50, but the present invention is limited to the engine rotation speed display device. It is also applicable to a simple engine speed indicator, etc., which directly displays the engine speed without using the control module 50 or the like.

[0018]

[Effect of device]

 As described above, in the vehicle equipped with the display device according to the present invention, the vehicle speed and the shift gear position are detected, and the vehicle is shifted up or shifted from the shift gear position based on the vehicle speed and the vehicle data stored in advance. Since each target engine speed during clutch meet when down is calculated and each target engine speed during clutch meet can be displayed together with the actual engine speed, the driver can determine the actual engine speed. Since it is possible to easily and accurately match the target engine speed during the clutch meet during a shift change, a smooth shift change with less gear shift shock is possible, and the passengers feel discomfort due to the gear shift shock. It can be eliminated, and damage to the vehicle's transmissions and drive trains is light. Can, it is possible to allow also the life of the vehicle.

[Brief description of drawings]

FIG. 1 is a diagram for responding to a claim according to the present invention.

FIG. 2 is a block diagram showing an embodiment according to the present invention.

FIG. 3 is a configuration diagram showing an embodiment according to the present invention.

FIG. 4A is a detailed explanatory diagram showing an example of upshifting according to an embodiment of the present invention. FIG. 3B is a detailed explanatory diagram showing an example of downshifting according to an embodiment of the present invention.

FIG. 5 is a flowchart showing an embodiment according to the present invention.

[Explanation of symbols]

 10 engine 20 mechanical clutch 30 manual transmission 31 shift gear position sensor 32 vehicle speed sensor 33 engine rotation speed sensor 43 engine rotation speed display device 44 target engine rotation speed display device at clutch meet 50 control module

Claims (1)

[Scope of utility model registration request] 1. A vehicle equipped with a manual transmission that is connected to an engine through a mechanical clutch to perform a manual gear shift operation, an engine rotational speed detecting means for detecting an engine rotational speed, and a shift gear position for detecting a shift gear position. A target engine rotation speed at each clutch meet when shifting up or down from the shift gear position is calculated based on the detection means and the engine rotation speed detected by the engine rotation speed detection means and vehicle data stored in advance. It is characterized by comprising: target engine rotation speed calculation means at clutch meet time; and display means for displaying each target engine rotation speed at clutch meet time together with the actual engine rotation speed detected by the engine rotation speed detection means. Vehicle display device.