JP2011046362A - Torque display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a driver to appropriately recognize a size of drive torque and braking torque distributed to right and left drive wheels. <P>SOLUTION: Tht torque displays 22LF, 22RF, 22LR, 22RR of a torque display means 21 for displaying an amount of torque generated on the respective drive wheels of the vehicle include: a border 23; a first display area 24 formed of four segments arranged on an upper part of the border 23; and a second display area 25 formed of two segments arranged on a lower part of the border 23. The size of the drive torque is displayed by the number of the lighted segments of the first display area 24 when the amount of torque is the drive torque, and on contrary to that, the size of the braking torque is displayed by the number of the lighted segments of the second display area 25 when the amount of torque is the braking torque. Then, the driver can recognize not only the size of the torque in every drive wheel but also that the torque is the drive torque or the braking torque. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle torque display device including torque display means for displaying a torque amount generated in each drive wheel of a vehicle by a graphic for each drive wheel.

  In a four-wheel drive vehicle in which engine torque can be distributed to the front and rear wheels, a technique for displaying the magnitude of torque currently distributed to each wheel by the number of LED segments that emit light is known from Patent Document 1 below. It is.

  In a four-wheel drive vehicle in which engine torque can be distributed to the front and rear wheels and different torques can be distributed to the left and right rear wheels, the torque distributed to the turning outer wheel and the torque distributed to the turning inner wheel It is known from Patent Document 2 below that the relative difference between the two is displayed by emitting light at different positions of the right and left portions of the plurality of LED segments arranged in an arc shape.

Japanese Utility Model Publication No. 63-42435 JP 2009-29181 A

  The torque distributed to each wheel of a four-wheel drive vehicle includes a drive torque that accelerates the vehicle and a braking torque that decelerates the vehicle.

  The invention described in Patent Document 1 displays the magnitude of torque for each wheel without distinguishing between driving torque and braking torque, so that the driver can control whether the wheel is generating driving force. There is a problem that it is impossible to confirm whether the power is generated, and the torque distribution state cannot be accurately grasped.

  The invention described in Patent Document 2 can display the state of the yaw moment generated by the left / right distribution of torque, but the driver can distribute the driving torque or braking torque to each wheel. There was a problem that I could not know if.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable a driver to accurately recognize the magnitudes of drive torque and braking torque distributed to left and right drive wheels.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a vehicle including a torque display unit that displays a torque amount generated on each driving wheel of the vehicle by a graphic for each driving wheel. In the torque display device for use, the torque display unit includes a boundary portion, a first display region disposed on one side of the boundary portion, and a second display region disposed on the other side of the boundary portion, When the torque amount is a driving torque, the first display area is displayed with an area or length corresponding to the magnitude of the driving torque, and when the torque amount is a braking torque, the first display region is displayed. A vehicle torque display device is proposed that displays two display areas with an area or length corresponding to the magnitude of the braking torque.

  According to the second aspect of the present invention, in addition to the configuration of the first aspect, the first display region is disposed on the upper side of the boundary portion, and the display area or the display length is increased according to the increase of the driving torque. Is increased upward from the boundary portion, the second display area is disposed below the boundary portion, and a display area or a display length decreases downward from the boundary portion in accordance with an increase in the braking torque. A vehicle torque display device is proposed which increases toward the vehicle.

  According to the invention described in claim 3, in addition to the configuration of claim 1 or 2, four torque display portions for the left front wheel, the right front wheel, the left rear wheel and the right rear wheel are provided. And the four torque display units are capable of displaying the amount of torque generated in the left front wheel, right front wheel, left rear wheel and right rear wheel in a non-uniform manner. Proposed.

  According to the invention described in claim 4, in addition to the configuration of claim 3, there is provided torque amount calculation means for calculating the torque amount distributed to each drive wheel of the vehicle, and the torque amount calculation means Among the calculated torque amounts, when the torque amount generated on one of the left and right front wheels and the left and right rear wheels is zero, the display states of the two torque display portions corresponding to the one left and right wheels are A vehicle torque display device is proposed which has the same display state of the other two torque display portions corresponding to the other left and right wheels of the front wheel and the left and right rear wheels.

  According to the fifth aspect of the present invention, in addition to the configuration of the third aspect, the differential gear provided between the left and right wheels or between the front and rear wheels includes a differential limiting mechanism, and the differential limiting mechanism operates. There is proposed a vehicle torque display device that prohibits uneven display of torque amounts of the left front wheel, the right front wheel, the left rear wheel, and the right rear wheel during the restriction.

  According to the invention described in claim 6, in addition to the configuration of any one of claims 1 to 5, the first and second displays for the torque amount generated in each drive wheel. A vehicle torque display device is proposed in which the display area or display length of the region increases as the transmission gear stage increases at a higher speed.

  The left front wheel WLF, the right front wheel WRF, the left rear wheel WLR, and the right rear wheel WRR of the embodiment correspond to the driving wheel of the present invention, and the rear differential gear 19 of the embodiment corresponds to the differential gear of the present invention. .

  According to the configuration of claim 1, the torque display unit that displays the amount of torque generated in each drive wheel of the vehicle includes the boundary part, the first display region disposed on one side of the boundary part, and the boundary part. A second display area disposed on the other side, and when the torque amount is a drive torque, the first display area is displayed with an area or length corresponding to the magnitude of the drive torque, and vice versa. When the torque amount is braking torque, the second display area is displayed with an area or length corresponding to the magnitude of the braking torque, so that the driver not only has the magnitude of the torque for each driving wheel, Whether it is driving torque or braking torque can be recognized.

  According to the configuration of the second aspect, the display area or the display length of the first display area disposed on the upper side of the boundary portion increases upward from the boundary portion in accordance with the increase of the driving torque. Since the display area or the display length of the second display area arranged on the lower side of the second display area increases downward from the boundary as the braking torque increases, the torque generated by the driver on the drive wheels can be reduced. Whether the driving torque or the braking torque can be grasped intuitively.

  According to the configuration of claim 3, the four torque display portions for the left front wheel, the right front wheel, the left rear wheel, and the right rear wheel display the amount of torque generated in those wheels in an uneven manner. Therefore, even if the torque amount of each wheel is different, it is possible to correctly grasp the torque amount of each wheel.

  According to the fourth aspect of the present invention, even if the calculated value of the torque amount generated on one of the left and right front wheels and the left and right rear wheels is zero, an actual vehicle has four wheels with driving force or control. Because the power is working, the two torque display parts corresponding to one of the left and right wheels do not set the torque amount displayed to zero, and the other two corresponding to the other left and right wheels of the left and right front wheels and the left and right rear wheels Torque display unit displays the same amount of torque as displayed on the torque display, preventing the driver from giving the impression that the vehicle is a front-wheel drive vehicle or a rear-wheel drive vehicle even though it is a four-wheel drive vehicle. can do.

  According to the fifth aspect of the present invention, when the differential limiting mechanism of the differential gear provided between the left and right wheels or between the front and rear wheels performs differential limiting, that is, the torque amount of the wheels on both sides of the differential gear is uniform. When it becomes, the display of the torque amount of the left front wheel, the right front wheel, the left rear wheel, and the right rear wheel is prohibited, so that the actual torque amount of each wheel can be displayed correctly to eliminate the driver's uncomfortable feeling. it can.

  According to the sixth aspect of the present invention, even if the torque amount generated in the drive wheels is the same, the display area or the display length of the first and second display regions is increased as the transmission gear stage becomes the high speed gear stage. Therefore, the amount of torque can be displayed larger during high-speed traveling and the amount of torque can be displayed smaller during low-speed traveling, reducing the driver's uncomfortable feeling.

The skeleton figure of the power transmission system of a four-wheel drive vehicle (1st Embodiment). The figure which shows the torque display means of a meter panel (1st Embodiment). The figure which shows the display state of the torque display means at the time of acceleration turning and deceleration turning (1st Embodiment). The figure which shows the display state of a torque display means when drive torque is distributed only to a front wheel (1st Embodiment). The figure which shows the display state of a torque display means when braking torque is distributed only to a front wheel (1st Embodiment). The map which shows the number of lighting of the segment of a torque display means (2nd Embodiment).

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the four-wheel drive vehicle includes left and right rear wheels WLR and WRR that are main drive wheels, and left and right front wheels WLF and WRF that are auxiliary drive wheels. The torque of the engine E is transmitted to the transfer 11 via the transmission T, and is transmitted from the transfer 11 to the left and right rear wheels WLR, WRR via the rear propeller shaft 12, the torque distribution mechanism 13, and the left and right rear drive shafts 14,14. The A front / rear torque distribution clutch 16 is provided at an intermediate portion of the front propeller shaft 15 branched from the transfer 11, and the torque of the front propeller shaft 15 is transmitted to the left and right front wheels via the front differential gear 17 and the front drive shafts 18, 18. It is transmitted to WLF and WRF.

  The torque distribution mechanism 13 includes a rear differential gear 19, a pair of left and right torque distribution clutches 20L and 20R, and a known differential rotation generation mechanism (not shown) including a triple pinion and the like. When the pair of left and right torque distribution clutches 20L, 20R are not engaged, only the rear differential gear 19 functions in the torque distribution mechanism 13, and the torque of the rear propeller shaft 12 is evenly distributed to the left and right rear wheels WLR, WRR. Is done.

  When the left and right torque distribution clutch 20L is engaged, the left and right rear drive shafts 14 and 14 are connected by a gear train to generate a predetermined differential rotation, and the rotation speed of the right rear wheel WRR is the rotation speed of the left rear wheel WLR. Forcibly increasing the speed, a part of the torque of the right rear wheel WRR is distributed to the left rear wheel WLR, and the torque of the left rear wheel WLR becomes larger than the torque of the right rear wheel WRR. Conversely, when the right and left torque distribution clutch 20R is engaged, the left and right rear drive shafts 14 and 14 are connected by a gear train to generate a predetermined differential rotation, and the rotation speed of the left rear wheel WLR is the right rear wheel WRR. Is forcibly increased with respect to the number of rotations, so that a part of the torque of the left rear wheel WLR is distributed to the right rear wheel WRR, and the torque of the right rear wheel WRR is larger than the torque of the left rear wheel WLR. Become.

  The torque distribution amount between the left and right rear wheels WLR and WRR at that time can be arbitrarily controlled by adjusting the engagement force of the left and right left and right torque distribution clutches 20L and 20R.

  Further, when the front / rear torque distribution clutch 16 is disengaged, all the torque of the engine E is distributed to the rear wheels WLR and WRR to enter the rear wheel drive state, and when the front / rear torque distribution clutch 16 is engaged, the torque of the engine E is reduced. A part is also allocated to the front wheels WLF and WRF to enter a four-wheel drive state.

  Therefore, for example, when the vehicle starts in a rear wheel drive state in which the front and rear torque distribution clutch 16 is disengaged, the rear wheels WLR and WRR slip and the differential rotation between the front wheels WLF and WRF and the rear wheels WLR and WRR increases. In this case, by engaging the front / rear torque distribution clutch 16 and distributing the torque to the front wheels WLF and WRF, the vehicle can be brought into a four-wheel drive state and the starting performance can be improved.

  Further, when the vehicle turns, the left and right torque distribution clutches 20L and 20R of the torque distribution mechanism 13 are selectively engaged to increase the torque of the rear wheels WLR and WRR serving as outer turning wheels, thereby increasing the rear wheels WLR and WRR serving as inner turning wheels. If the torque is reduced, the turning performance can be improved by generating a yaw moment in the direction of assisting the turning. Conversely, if the torque of the rear wheels WLR and WRR that are the outer turning wheels is decreased and the torque of the rear wheels WLR and WRR that are the inner turning wheels is increased, the yaw moment in the direction that suppresses the turning is generated, and the straight running stability performance Can be increased.

  As described above, the four-wheel drive vehicle can control the torque distributed to the front wheels WLF and WRF and the torque distributed to the rear wheels WLR and WRR at an arbitrary ratio, and the left and right rear wheels WLR and WRR. Can be controlled at an arbitrary ratio. When the vehicle decelerates by engine braking, the torque transmitted to the front wheels WLF, WRF or the rear wheels WLR, WRR may be negative (braking torque), and the torque between the left and right rear wheels WLR, WRR When the distribution control is performed, there is a case where one of the left and right rear wheels WLR and WRR has a positive value (driving torque) and the other has a negative value (braking torque). Thus, since torque is distributed to the four wheels in various ways, torque display means 21 for making the driver recognize the torque is provided on the multi-information display of the meter panel.

  As shown in FIG. 2, the torque display means 21 for displaying information by light emission from the LED schematically displays the left and right front wheels WLF, WRF and the left and right rear wheels WLR, WRR at the center. A torque display portion 22LF of the left front wheel WLF is provided on the left side of the WLF, and a display portion 22RF of the right front wheel WRF torque is provided on the right side of the right front wheel WRF on the left side of the left rear wheel WLR on the left rear. Is provided with a torque display portion 22LR for the left rear wheel WLR, and a torque display portion 22RR for the right front / rear WRR is provided on the right side of the right rear wheel WRR.

  Since the four torque display portions 22LF, 22RF, 22LR, and 22RR have the same structure, the structure of the torque display portion 22LF of the left front wheel WLF will be described. The torque display portion 22LF includes a boundary portion 23 composed of one thin horizontal line segment, a first display area 24 composed of five thick horizontal line segments disposed above the boundary portion 23, and a boundary portion 23. And a second display area 25 made up of two thick horizontal line segments. The five segments of the first display area 24 and the two segments of the second display area 25 are arranged in parallel with a slight gap.

  The first display area 24 above the boundary 23 displays the magnitude of the drive torque, and the five segments are closer to the boundary 23 as the magnitude of the drive torque increases. The number of segments that are lit up displays the magnitude of the drive torque. The second display area 25 below the boundary 23 displays the magnitude of the braking torque. As the magnitude of the braking torque increases, the two segments are closer to the boundary 23. The segments are lit in order from the segment, and the number of segments that are lit displays the magnitude of the braking torque.

  FIG. 3A shows the state of the torque display means 21 when the vehicle accelerates while turning left. At this time, the front and rear torque distribution clutch 16 is engaged, and the driving torque of the engine E is changed to the front wheels WLF, WRF and While being distributed to the rear wheels WLR and WRR, the right and left torque distribution clutch 20R on the right side of the torque distribution mechanism 13 is engaged, the drive torque of the right rear wheel WRR is increased, and the drive torque of the left rear wheel WLR is decreased. Braking torque.

  Since driving torque is distributed to the left and right front wheels WLF and WRF during acceleration of the vehicle, the two display portions 22LF and 22RF corresponding to the left and right front wheels WLF and WRF are displayed on the first display above the boundary portion 23. Two segments of region 24 are lit. Since the front differential gear 17 does not have a torque distribution function, the torque distributed to the left and right front wheels WLF, WRF is always the same.

  During the left turn of the vehicle, braking torque is generated on the left rear wheel WLR, and driving torque is generated on the right rear wheel WRR to assist the turn. The display part 22LR corresponding to the left rear wheel WLR displays that two segments of the second display area 25 below the boundary part 23 are lit to indicate that braking torque is being generated, and the right rear wheel WRR. The display section 22RR corresponding to the above indicates that the four segments of the first display area 24 above the boundary section 23 are lit and driving torque is being generated.

  FIG. 3B shows the state of the torque display means 21 when the vehicle decelerates while turning left. At this time, the front and rear torque distribution clutch 16 is engaged and the braking torque by the engine brake is changed to the front wheels WLF, WRF and While being distributed to the rear wheels WLR and WRR, the right and left torque distribution clutch 20R on the right side of the torque distribution mechanism 13 is engaged, the drive torque of the right rear wheel WRR is increased, and the drive torque of the left rear wheel WLR is decreased. Braking torque.

  Since braking torque is distributed to the left and right front wheels WLF and WRF during deceleration of the vehicle, the two display portions 22LF and 22RF corresponding to the left and right front wheels WLF and WRF are provided on the lower side of the boundary portion 23. Two segments of the two display area 25 are lit.

  During the left turn of the vehicle, the braking torque is generated on the left rear wheel WLR and the driving torque is generated on the right rear wheel WRR, as in the above-described acceleration, to assist the turn. The display part 22LR corresponding to the left rear wheel WLR displays that two segments of the second display area 25 below the boundary part 23 are lit to indicate that braking torque is being generated, and the right rear wheel WRR. The display unit 22RR corresponding to 点灯 indicates that three segments of the first display region 24 on the upper side of the boundary portion 23 are lit and driving torque is being generated.

  As described above, the four torque display portions 22LF, 22RF, 22LR, and 22RR are configured to unevenly generate torque amounts generated in the four wheels, that is, the left and right front wheels WLF and WRF and the left and right rear wheels WLR and WRR. Therefore, even if the torque amount of each wheel is different, the torque amount of each wheel can be correctly grasped.

  Further, the torque display portions 22LF, 22RF, 22LR, and 22RR of each wheel are provided with a first display region 24 and a second display region 25 above and below the boundary portion 23, and when the torque amount is a drive torque, the upper second When the number of segments in one display area 24 is lit in the number corresponding to the magnitude of the driving torque, conversely, when the amount of torque is the braking torque, the segment in the second display area 25 corresponds to the magnitude of the braking torque. Since the number of lights is lit, the driver can recognize not only the magnitude of torque for each wheel but also whether it is driving torque or braking torque.

  Further, the four torque display portions 22LF, 22RF, 22LR, and 22RR corresponding to the front, rear, left, and right wheels are disposed in the same positional relationship as the front, rear, left, and right wheels as viewed from the driver, and disposed above the boundary portion 23. In the first display area 24, the number of segments to be lit increases as the driving torque increases, and the second display area 25 arranged below the boundary 23 increases the braking torque. Accordingly, the number of segments to be lit increases in accordance with the vehicle, so that the driver does not have a risk of misrecognizing the correspondence between each wheel and each torque display unit 22LF, 22RF, 22LR, 22RR. Can intuitively grasp whether the torque generated in the wheel is the driving torque or the braking torque.

  Next, a method for calculating the amount of torque distributed to each drive wheel WLF, WRF, WLR, WRR in order to control lighting of the segments of the torque display units 22LF, 22RF, 22LR, 22RR will be described. This calculation of the amount of torque is executed by a torque calculation means comprising an electronic control unit.

  The driving force or braking force of the entire vehicle output from the transmission T is calculated by a predetermined method, and the value obtained by subtracting the torque distribution control amount to the front side from the calculated value is used as the rear side torque amount, and the rear side torque is calculated. The value obtained by adding / subtracting the left / right distribution control amount to the amount is the torque amount of the rear wheel.

  The calculation method (when the rear drive system has front distribution and rear left / right distribution functions) is shown below.

Left front wheel WLF estimated torque amount = front torque distribution control amount ÷ 2
Right front wheel WRF estimated torque amount = front torque distribution control amount ÷ 2
Rear torque amount = Estimated mission output torque / 2-Left / right distribution control amount / 2
Left rear wheel WLR estimated torque amount = rear torque amount ÷ 2 + left and right distribution control amount ÷ 2
Right rear wheel WRR estimated torque amount = rear torque amount / 2-left / right distribution control amount / 2
With the above calculation, the torque amount distributed to each drive wheel WLF, WRF, WLR, WRR is calculated, and the number of segments (torque amount) displayed on the torque display portions 22LF, 22RF, 22LR, 22RR of the meter panel is determined. .

  By the way, when the torque amount generated in each drive wheel WLF, WRF, WLR, WRR is obtained by calculation as described above, the amount of torque actually distributed to each drive wheel and the calculation according to the road surface condition, the accelerator operation of the driver, and the like are calculated. An error may occur between the results. For example, although the driving torque is allocated to the front wheels WLF and WRF and the torque is allocated to the rear wheels WLR and WRR, the torque calculation result of the rear wheels WLR and WRR may be zero. is there. At that time, the torque display states of the torque display units 22LF, 22RF, 22LR, and 22RR are as shown in FIG. 4A. When such display is performed, the front wheel drive vehicle is a four-wheel drive vehicle. The driver may feel uncomfortable with a certain impression. Therefore, as shown in FIG. 4B, the torque display states displayed on the torque display portions 22LF, 22RF, 22LR, and 22RR are matched with the torque amounts actually distributed to the front and rear wheels. By displaying the same driving torque as the torque display units 22LF and 22RF of the front wheels WLF and WRF on the torque display units 22LR and 22RR of the wheels WLR and WRR, it is possible to eliminate the driver's uncomfortable feeling.

  Similarly, although the braking torque is distributed to the front wheels WLF and WRF and the braking torque is also distributed to the rear wheels WLR and WRR, the torque calculation result of the rear wheels WLR and WRR becomes zero. There is a case. At that time, the torque display states of the torque display units 22LF, 22RF, 22LR, and 22RR are as shown in FIG. 5A. When such display is performed, the front wheel drive vehicle is a four-wheel drive vehicle. The driver may feel uncomfortable with a certain impression. Therefore, as shown in FIG. 5B, the torque display states displayed on the torque display portions 22LF, 22RF, 22LR, and 22RR are matched with the torque amounts actually allocated to the front and rear wheels. By displaying the same braking torque as the torque display portions 22LF and 22RF of the front wheels WLF and WRF on the torque display portions 22LR and 22RR of the wheels WLR and WRR, it is possible to eliminate the driver's uncomfortable feeling.

  Each segment is not limited to being turned on or off by ON / OFF, and the lighting width in the vertical direction of the segment may be increased or decreased continuously.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In the first embodiment described above, the number of segments to be lit in the first display area 24 and the second display area 25 of each torque display portion 22LF, 22RF, 22LR, 22RR is independent of the gear stage of the transmission T. It corresponds to the actual torque amount of the corresponding wheel.

  FIG. 6 shows the relationship between the torque (driving torque or braking torque) of the front wheels WLF, WRF or the rear wheels WLR, WRR and the number of segments to be lit in the first and second display areas 24, 25. Is a map showing a case where the gear is a low gear (first gear or second gear: see solid line) and a case where the gear of the transmission T is a high gear (more than third gear: see broken line). As is apparent from the figure, even when the magnitudes of the torques of the front wheels WLF and WRF or the rear wheels WLR and WRR are the same, the number of segments to be lit is larger at the high speed gear.

  As described above, in the second embodiment, even if the wheel torque is the same, the number of segments to be lit is reduced at a low speed gear stage where the vehicle runs at a low speed, and at a high speed gear stage where the vehicle runs at a high speed. Since the number of segments to be lit increases, the driver's uncomfortable feeling when viewing the torque display means 21 can be reduced.

  Next, a third embodiment of the present invention will be described.

  The rear differential gear 19 of this four-wheel drive vehicle has a differential limiting mechanism. When one of the left and right rear wheels WLR and WRR slips on the low friction coefficient road surface, the difference between the rear differential gear 19 and the rear differential gear 19 is different. By restricting the movement, it is possible to distribute the equal torque to the left and right rear wheels WLR and WRR to improve the running performance.

  In such a case, non-uniform display of the torque of the four wheels is prohibited, and an equal amount of torque is displayed on the torque display portions 22LR and 22RR corresponding to the left and right rear wheels WLR and WRR. Can recognize the equal torque actually generated in the left and right rear wheels WLR and WRR due to the differential limitation.

  The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

  For example, in the embodiment, each of the first display area 24 and the second display area 25 includes a plurality of segments, and the magnitude of torque is displayed by the number of segments to be lit. The magnitude of the torque may be indicated by the size of the lighting area. That is, it is only necessary to display the magnitude of the torque depending on the lighting area of the segment regardless of whether the segment is divided or not divided.

  Alternatively, the first display area 24 and the second display area 25 may be configured by bar-shaped segments, and the magnitude of torque may be displayed according to the length of the lighted portion.

  Although the embodiment includes four torque display portions 22LF, 22RF, 22LR, and 22RR corresponding to the four drive wheels of the four-wheel drive vehicle, the present invention provides two types of front-wheel drive vehicle or rear-wheel drive vehicle. Two torque display units may be provided corresponding to the drive wheels.

T Transmission WLF Left front wheel (drive wheel)
WRF Right front wheel (drive wheel)
WLR Left rear wheel (drive wheel)
WRR Right rear wheel (drive wheel)
19 Rear differential gear (Differential gear)
22LF Torque display section 22RF Torque display section 22LR Torque display section 22RR Torque display section 23 Boundary section 24 First display area 25 Second display area

Claims (6)

Torque display units (22LF, 22RF, 22), which display the amount of torque generated in each driving wheel (WLF, WRF, WLR, WRR) of the vehicle by a graphic for each driving wheel (WLF, WRF, WLR, WRR) 22LR, 22RR) for a vehicle torque display device,
The torque display part (22LF, 22RF, 22LR, 22RR) includes a boundary part (23), a first display region (24) disposed on one side of the boundary part (23), and the boundary part (23). A second display area (25) arranged on the other side,
When the torque amount is a driving torque, the first display area (24) is displayed with an area or length corresponding to the magnitude of the driving torque, and when the torque amount is a braking torque. The vehicle torque display device displays the second display area (25) with an area or length corresponding to the magnitude of the braking torque. The first display area (24) is disposed above the boundary (23), and the display area or display length increases upward from the boundary (23) according to the increase of the driving torque,
The second display area (25) is disposed below the boundary portion (23), and the display area or display length increases downward from the boundary portion (23) as the braking torque increases. The vehicle torque display device according to claim 1, wherein:   Four torque display portions (22LF, 22RF, 22LR, 22RR) for the left front wheel (WLF), the right front wheel (WRF), the left rear wheel (WLR), and the right rear wheel (WRR) are provided. The torque display unit (22LF, 22RF, 22LR, 22RR) unevenly displays the amount of torque generated in the left front wheel (WLF), right front wheel (WRF), left rear wheel (WLR), and right rear wheel (WRR). The vehicle torque display device according to claim 1, wherein the vehicle torque display device is capable of being displayed.   Torque amount calculating means for calculating a torque amount distributed to each drive wheel (WLF, WRF, WLR, WRR) of the vehicle is provided, and left and right front wheels (WLF) among the torque amounts calculated by the torque amount calculating means. , WRF) and the left and right rear wheels (WLR, WRR) when the amount of torque generated on one of the left and right wheels is zero, the two torque display portions (22LF, 22RF, 22LR, 22RR) corresponding to the one left and right wheels Display states of the other two torque display portions (22LF, 22RF, 22LR, 22RR) corresponding to the other left and right wheels of the left and right front wheels (WLF, WRF) and the left and right rear wheels (WLR, WRR). The vehicle torque display device according to claim 3, wherein   A differential gear (19) provided between the left and right wheels or between the front and rear wheels includes a differential limiting mechanism, and when the differential limiting mechanism limits the operation, the left front wheel (WLF), the right front wheel (WRF) The vehicle torque display device according to claim 3, wherein uneven display of torque amounts of the left rear wheel (WLR) and the right rear wheel (WRR) is prohibited.   The display area or display length of the first and second display areas (24, 25) with respect to the amount of torque generated in each of the drive wheels (WLF, WRF, WLR, WRR) is the speed of the transmission (T). 6. The vehicle torque display device according to claim 1, wherein the torque increases as the speed increases.

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