JP4666040B2 - Vehicle control device - Google Patents

Description

  The present invention relates to a vehicle operating device.

JP-A-5-298013 JP-A-7-298013 JP 7-319618 A JP 2001-43011 A JP 2002-157063 A

  Conventionally, as an operation device for an in-vehicle device such as a car navigation device, an operation force applied to the operation unit is detected by a plurality of load sensors (for example, strain gauges) associated with the operation unit, and an operation is performed based on a detection value of each load sensor. There are known ones that determine an input direction and an input position (Patent Documents 1 to 5).

  However, in the input device using the load sensor as described above, even when continuous vibration is applied to the vehicle when traveling on a rough road, the load sensor detects this, and erroneous operation input recognition is not possible. It may be done. In addition, if a large vibration is applied during the operation, there is a problem that the operation hand is shaken and an operation error is likely to occur.

  SUMMARY OF THE INVENTION An object of the present invention is to make it difficult for erroneous operation detection and operational error to occur even when vibration or impact is applied in a vehicle operating device using a load detection unit (for example, a strain gauge) for input detection.

Means for solving the problems and effects of the invention

The present invention relates to a vehicular operating device that is attached to a position that can be operated by a user seated on a seat in a vehicle interior.
An object to which an operation force is applied by a user;
An operation support portion for supporting the object to be operated in a manner of receiving an operation force;
A plurality of load detection units for detecting loads transmitted to the operation support unit via the operated body with the operation force on different load transmission paths from the operated body to the operation support unit, and
Input information generation and output means for generating and outputting input information corresponding to the operation state to the operated body based on the load detection states of the plurality of load detection units;
A vibration detector for detecting vibration applied to the object to be operated;
And an input information generation / output control means for controlling the operation of the input information generation / output means in accordance with the vibration detection level detected by the vibration detection unit.

  According to the configuration of the vehicle operating device of the present invention described above, the vibration detection unit detects the vibration information detected by the vibration detection unit while generating input information corresponding to the operation state of the operated body based on the load detection states of the plurality of load detection units. The operation of the input information generation and output means is limited according to the level, so that even if high level vibration is continuously applied, it is difficult to cause erroneous operation detection (or erroneous recognition) or operation error. it can.

  Road vibration with a small amplitude or single-shot vibration with short continuity is not likely to cause malfunctions such as erroneous operation detection or manipulation errors immediately, or even if it is a malfunction factor, it may be caused by conventional means such as signal filtering. It can be avoided relatively easily. Therefore, the input information generation / output control means is configured to limit the output of the input information only when the state in which the vibration detection level detected by the vibration detection unit exceeds a predetermined threshold is continued for a certain period of time. For example, the output of the input information is limited only when a large vibration or the like that causes a failure is surely applied, and there is no inconvenience that the output limiting function is sensitively activated even for a small vibration that does not need to be particularly wary.

  The input information generation output control means can be configured to prohibit the output of the input information when the vibration detection level detected by the vibration detection unit exceeds a predetermined threshold. According to this configuration, since the output of the input information itself is prohibited when the vibration detection level exceeds a predetermined threshold value, it is possible to avoid a problem of erroneously detecting a large vibration or impact as an operation input. When a vibration or impact is applied while the object is being handled, it is effective to prevent malfunctions caused by erroneous operation in an undesired direction or stroke.

  The input information generation / output means has load level comparison means for comparing each detected load level of the plurality of load detection sections with a predetermined reference value, and is input only when the detected load level exceeds the reference value. It can be configured to output information. As a result, when the detected load level is lower than the reference value, input response does not occur, so the device responds excessively sensitively to contact that is not intended to be input, such as accidentally touching the target object lightly. Can prevent the problem. Naturally, when the detected load level is biased by vibration or shock from the vehicle side, such a false response can occur even if the contact is extremely light or no contact actually occurs. Therefore, by applying the present invention, it is possible to effectively reduce the problem that input information that does not reflect the true operation content due to vibration or impact is erroneously output.

  In this case, when the vibration detection level detected by the vibration detection unit exceeds a predetermined threshold, the input information generation / output control unit sets the reference value of the detected load level referred to by the load level comparison unit from the normal time. It is good to change and set so that it becomes high. When a vibration or impact exceeding the specified level is applied, the reference value is changed so that it is higher than normal, so even if the detected load level is biased by such vibration or impact, it is derived from the true operation. As a result, the load margin for determining the load level is secured as much as the reference value is raised, and the above-mentioned erroneous response can be effectively prevented.

  Further, as a more advanced control mode, the input information generation output control unit is configured such that the reference value of the detected load level referred to by the load level comparison unit when the vibration detection level detected by the vibration detection unit exceeds the first threshold value. Can be changed so as to be higher than normal, and the output of the input information can be prohibited when the vibration detection level exceeds a second threshold value higher than the first threshold value. According to this configuration, in the case of a medium level vibration (that is, a vibration level between the first threshold value and the second threshold value) that can maintain the input operation itself even if there is some vibration, the above-described operation is performed by raising the reference value. The input recognition process can be continued while preventing erroneous responses, and the output of the input information itself is prohibited in a situation where a large vibration (that is, a vibration level exceeding the second threshold) in which normal input operation can hardly be expected is applied. In this way, it is possible to prevent a problem that wrong input information flows out to the outside.

  When vibration is applied to the apparatus, the vibration load can naturally be detected by the load detection unit. Therefore, the number of parts can be reduced by using at least one of the plurality of load detection units as the vibration detection unit. On the other hand, it is of course possible to provide the vibration detection unit separately from the load detection unit, and in particular, by providing such a vibration detection unit at a position off the load transmission path from the operated body to the operation support unit. Thus, it is possible to more reliably detect vibration from the vehicle side that is unrelated to the operation load.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of an assembled form in a vehicle interior of a vehicle operating device of the present invention. That is, the monitor 15 is disposed at the center of the instrument panel in the interior of the automobile (vehicle), and the operation unit 12 is disposed at a position operable from the driver seat 2D (and a passenger seat (not shown)) of the center console C. . Although the purpose of use is not particularly limited, for example, it is for performing functional operations of the car navigation device and the car audio device while looking at the screen of the monitor 15 provided in the center console.

  FIG. 2 shows an example of the appearance of the operation unit 12. On the upper surface of the housing 12d, a palm rest portion 12p for placing a user's palm is formed in a bulging shape, and the operation knob 12a protrudes upward in a through window 12h formed in front thereof. The touch input operation surface 120p of the operation target 120 is exposed.

  FIG. 3 shows a portion accommodated in the housing 12d. The touch input operation surface 120p of the operation target 120 is applied to the touch input operation surface 120p by the user, and the operation input is received in the form of receiving the operation force. An operation support portion 122 that supports the operation body 120 is provided. In addition, different load transmission paths from the operated body 120 to the operation support portion 122 (formed by an elastic connection support body (elastic beam member) 123 as described later) are provided with the operation force. A plurality of load detection units (strain gauge units described later) for detecting the loads transmitted to the operation support unit 122 via 120 are provided.

  The operated body 120 is formed as a flat input body (hereinafter also referred to as the flat input body 120) in which a touch input operation surface 120p is formed on one side in the thickness direction (upper surface in the drawing). Specifically, the flat input body 120 is integrated with the plate-shaped main body 120b and one main surface side of the plate-shaped main body 120b, and the touch input surface is opposite to the plate-shaped main body 120b. The input pad 120a is formed.

  Between the flat input body 120 and the operation support part 122, an elastic connection support body 123 that is elastically deformed against the displacement of the flat input body 120 accompanying the touch input operation is flat as a load transmission path forming member. It is provided at a plurality of locations along the periphery of the input body 120. Specifically, the elastic connection support 123 has one end coupled to the operation support portion 122 and the other end coupled to the peripheral edge of the flat input body 120, and bends and deforms in the pressing direction toward the touch input operation surface 120p. It is formed as an elastic beam member (hereinafter also referred to as an elastic beam member 123).

  FIG. 4 is a block diagram showing the overall configuration of the apparatus including the input unit 12. The input unit 12 is drawn more schematically than in FIG. 3 (for example, the flat input body 120 is simplified as a single plate member). The load detection unit is provided on the elastic beam member (elastic connection support) 123. Specifically, the load detection unit is a strain gauge 223g, and is attached to the elastic beam member 123 on the side (upper surface side in the figure) that becomes a bent convex surface when pressing the touch input operation surface 120p. . Further, the operation support part 122 is a block-like base body disposed at a predetermined interval on the back surface (lower surface) side of the flat input body 120.

  As shown in FIG. 3, the flat input body 120 has a rectangular planar form, and each elastic beam member 123 is disposed along the back surface edge of the flat input body 120. Thereby, the elastic beam member 123 is accommodated in a form that is folded into the back side of the flat input body 120, and contributes to space saving.

  The elastic beam member 123 has a first end in the longitudinal direction coupled to the flat input body 120 by a first coupling spacer portion 124 so as to form a certain gap, and a second end is coupled to the operation support portion 122 in a second manner. The spacers 125 are coupled so as to form a certain gap. In the present embodiment, the flat input body 120 has a rectangular planar shape, and each elastic beam member 123 has a first end at each corner of the rectangular back surface of the flat input body 120 by the first connecting spacer portion 124. Combined with the part. And the 2nd end side of adjacent elastic beam members 123 is extended in the direction which mutually approaches in the long side direction of this rectangular-shaped back surface, and the operation support part 122 by the 2nd connection spacer part 125 in the intermediate position of this long side. Is bound to. The length of the elastic beam member 123 is ensured to be relatively large by using the long side of the rectangle, and even if the pressing force applied to the flat input body 120 is relatively small, the elastic beam member 123 can be greatly bent and deformed, and the load level Contributes to improved detection accuracy.

  Further, as shown in FIG. 1, when a pressing operation is applied to the touch input operation surface 120p on the upper surface side of the flat input body 120 (input pad 120a in FIG. 2) on the extension of the touch input operation surface 120p. The operation knob 12a for operating and displacing the flat input body 120 in the same direction is integrated in a protruding form. The operation knob 12a is also used for the purpose of pulling the flat input body 120 in FIG. 4 in a direction opposite to the pressing direction with respect to the touch input operation surface 120p while reversely deforming the elastic beam member 123.

  As shown in FIG. 4, when an operation force is applied to the touch input operation surface 120p or the operation knob 12a of the flat input body 120, each elastic beam member 123 is individually bent and deformed according to the operation position and the operation force level. The flat input body 120 is displaced. The strain gauge 123g provided in each elastic beam member 123 receives an in-plane expansion tension following the bending deformation of the elastic beam member 123, and changes the electric resistance value. Therefore, a strain gauge unit is configured by incorporating the strain gauge 123g into an appropriate resistance detection circuit (for example, a Wheatstone bridge or a more simplified half bridge, which is well known and will not be described in detail). By applying the detection voltage to the load, it is possible to take out the resistance change of the strain gauge 123g, and thus the load level applied to the elastic beam member 123 in the form of the load detection voltage.

  The load detection voltage from each strain gauge unit is amplified by the amplifier 130 and input to the operation ECU 10 as load level information. In the operation ECU 10, based on the input value of each load detection voltage, the drag position on the touch input operation surface 120p corresponding to the input position on the input seat surface corresponding to the touch input operation surface 120p and the temporal change thereof. An operation for creating the direction, and further, the pressing operation force specified from the absolute value of the load detection voltage as input information is performed, and the result is transmitted to, for example, the navigation ECU 200 that controls the car navigation system.

  FIG. 3 is a block diagram showing the electrical configuration of the operation ECU 10 in more detail. The operation ECU 10 is configured as a computer hardware board mainly composed of the CPU 101, and specifically has a structure in which the CPU 101, the RAM 102, the ROM 103, the input / output unit 104, and the serial communication interface 116 are interconnected by the internal bus 105. A strain gauge unit 223 including a strain gauge 123g and an auxiliary strain gauge 123j provided on each elastic beam member 123 of FIG. 4 is connected to an A / D conversion input port of the general-purpose input / output unit 104 via an amplifier 130. Yes. A bypass capacitor 131 is connected between the output path of the amplifier 130 and the ground so as to remove vibration noise components having a relatively high frequency such as engine vibration.

  In the present embodiment, the four strain gauge units 223 are also used as a vibration detection unit that detects a large-amplitude vibration having a relatively long duration, which is continuously generated when traveling on a rough road. In particular, high-level vibrations continue for a considerable period of time when traveling on an unpaved road. Therefore, when the load level exceeding the threshold is continuously detected for a predetermined time or longer (corresponding to a low-frequency vibration component that cannot be removed by the bypass capacitor 131: for example, 5 seconds or longer) in a predetermined one of these strain gauge units 223. Then, it is determined that vibration that should be taken into account in the calculation process of the input information has occurred. The vibration generated in the vehicle acts in such a manner that a translational vibration load is applied to the input unit 12 and thus to all of the plurality of strain gauge units 223 (load detection units), and thus to all of the plurality of strain gauge units 223. You may make it determine with the vibration having generate | occur | produced when the load level exceeding a threshold value is detected.

  The serial communication interface 116 is connected to an in-vehicle serial communication bus 30 such as a CAN communication bus, and other ECUs connected to the network, specifically, the above-described navigation ECU 200 that controls the car navigation device. Intercommunication is possible.

The ROM 103 stores the following software executed by the CPU 101. Thus, the CPU 101 functions as an input information generation / output unit, a touch input position coordinate calculation unit, an input information generation / output control unit, and a load level comparison unit.
Position calculation program 103a: Touch input position coordinates on the touch input operation surface 120p are calculated as input information based on the load level detected by each strain gauge unit 223 (load detection unit). Further, at the time of pressing operation to the operation knob 12a, the input position coordinates are calculated as a pressing operation to the area corresponding to the operation knob 12a on the same coordinate plane as the touch input position coordinates, and the calculated input position Based on the coordinates, the pressing operation to the operation knob 12a is identified, and the operation input information is output in a form distinguishable from the touch input position coordinate information when the touch operation is performed on the touch input operation surface 120p. Further, based on the detected load level of the auxiliary strain gauge 223j, input information relating to the pulling operation to the operation knob 12a is generated and output. In any processing, the load level input from each strain gauge unit 223 is compared with a predetermined reference value (hereinafter referred to as input detection determination reference value), and the load level is determined in at least one of the strain gauge units 223. If the predetermined reference value is exceeded, the input position coordinates are calculated. Conversely, if the load level is less than the reference value in all strain gauge units 223, the input position coordinates are not calculated (or executed). However, the calculation result is not output to the navigation ECU 200 or the like).

Input control program 103b: Controls correction of input information generation processing, such as touch input position coordinates, according to the level of vibration detected, and restricts output of input information. Specifically, when the state in which the vibration detection level to be detected exceeds a predetermined threshold is continued for a certain period of time, the above-described correction or restriction control is performed. Specifically, when the vibration detection level to be detected exceeds the first threshold value, the correction or limitation is changed and set so that the reference value to be compared with the detected load level is higher than normal. When the vibration detection level exceeds a second threshold value that is higher than the first threshold value, a process of prohibiting output (or calculation itself) of input information such as touch input position coordinates is performed.

Hereinafter, the operation of the in-vehicle operation device 1 will be described.
First, an input information creation process by the position calculation program 103a when an operation force is applied to the touch operation input surface 120p or the operation knob 12a of FIGS. 3 to 4 will be described. As shown in FIG. 6, an input coordinate plane extending across the touch operation input surface 120p and the region including the operation knob 12a is defined with the width direction of the vehicle as the X direction and the traveling direction as the Y direction. A possible area is defined as an effective input area. In order to facilitate understanding, it is assumed that the effective input area is standardized into a square area with each side defined as a unit length (1). Thereby, the input coordinate values x and y are calculated and specified as numerical values within the ranges of 0 ≦ x ≦ 1 and 0 ≦ y ≦ 1, respectively.

  In FIG. 3, since the bending stiffness of the flat input body 120 is much larger than the bending stiffness of each elastic beam member 123, the flat input body 120 can be handled as a substantially rigid body. It is absorbed by the elastic bending displacement of the beam member 123. In this case, the flat input body 120 itself can be regarded as being hardly bent and deformed. Therefore, the load accompanying the operation is a coordinate position where the load is applied to the four elastic beam members 123 (that is, the input position coordinates to be recognized ( x, y)) are assigned to the respective dividing points in the X direction and the Y direction, and are distributed in each direction according to the wrinkle relation. Since each elastic beam member 123 is connected to the operation support portion 122 at a fixed end, the connection points with the flat input body 120 (four corner positions of the rectangular flat input body 120, that is, the effective input region of FIG. 6). It is considered that the four elastic beam members 123 are bent and deformed independently of each other in a form in which each distribution load to each vertex position) is a bending load.

Therefore, if the above four distributed loads (that is, load levels detected by the strain gauge unit 223 of each elastic beam member 123) are defined as P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ as shown in FIG. direction of the load distribution ratio is _{P 11: P 12} and _{P 21:} equal to each other in the _{P 22,} Further, X direction of the load distribution ratio is _{P 11: P 21} and _{P 12:} is equal to each other in the _{P 22, P y1} if = a _{P 11 + P 21, P y2} = P 12 + P 22, P x1 = P 11 + P 12, P x2 = P 21 + P 22, as shown in FIG. 6, the Y direction in accordance槓桿relationship,
_Py2 / _Py1 = y / (1-y) (1)
Solving for y,
y = P _y2 / (P _y1 + P _y2 )
= (P ₁₂ + P ₂₂ ) / (P ₁₁ + P ₁₂ + P ₂₁ + P ₂₂ ) (2)
For the X direction,
P _x2 / P _x1 = x / (1-x) (3)
Solving for x,
x = P _x2 / (P _x1 + P _x2 )
= (P ₂₁ + P ₂₂ ) / (P ₁₁ + P ₁₂ + P ₂₁ + P ₂₂ ) (4)
That is, the input position coordinates (x, y) to be recognized on the effective input area are the load levels P ₁₁ , P ₁₂ , P detected by the respective strain gauge units 223 as in the above expressions (2) and (4). _21, can be univocally calculated, identified using _{P 22.}

A certain area above the effective input area in the Y direction is secured as a recognition area for pressing the operation knob 12a, and the remaining area is secured as an input coordinate recognition area on the touch input operation surface 120p. Accordingly, if the input position coordinates (x, y) calculated using P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ are within the input coordinate recognition area, the input position coordinates (x, y) are touched. It can be transmitted to the navigation ECU 200 as touch input position information on the input operation surface 120p. By using this touch input position information, it can be used as, for example, operation recognition for a soft button on a navigation operation screen displayed on the screen 15 or position instruction information on a map. In addition, when a drag operation is performed with a finger in contact with the touch input operation surface 120p, the drag direction can be identified from the change in the touch input position information that is recognized every moment. For example, it can be used as instruction information for pull-down menu operations or map scrolling. it can.

  If the calculated input position coordinates (x, y) are in the pressing operation recognition area, a pressing operation recognition code for the operation knob 12a is created separately from the information of the input position coordinates (x, y). Can be transmitted to the navigation ECU 200. On the other hand, if the auxiliary strain gauge 123j (FIG. 4) shows a detected load level that is above a certain level, it can be recognized that a pull operation has been performed on the operation knob 12a, and a pull operation recognition code is created and the navigation ECU 200 is informed. Can be sent. The pressing operation and pulling operation on the operation knob 12a can be widely used for, for example, enlarging / reducing the map scale, zooming in or out of the back monitor image, and panning out.

In addition, when a slight touch not intended to be input occurs, for example, when the touch input operation surface 120p or the operation knob 12a is lightly touched accidentally, the detected load levels P ₁₁ , P of each strain gauge unit 223 are detected. The absolute values of ₁₂ , P ₂₁ and P ₂₂ are all small. Therefore, in order to prevent a problem that the apparatus responds with an extremely sensitive input response, for these detected load levels P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ , an appropriate reference value P _r (P _r1 described later or P _r2 ) is determined, and the creation of the input information is executed only when any of P ₁₁ , P ₁₂ , P ₂₁ , P ₂₂ exceeds P _r .

Next, the flow of processing by the input control program 103b will be described with reference to the flowchart of FIG. S1 is an initialization process that resets a timer for measuring a vibration duration time, which will be described later, and sets the above-described input detection determination reference value to the first value _Pr1 that is a default value. The first value P _r1 is determined so that minor touches not intended for input can be excluded from input recognition when there is no vibration to be considered. Next, in S2, the detected load level of a predetermined one of the four strain gauge units 223 (only one or two or more output added values (or average values) may be used) is vibrated. Read as level. In S3, the vibration level is compared with a predetermined threshold value.

  The threshold value for the vibration level is set in two stages. Among these, the first threshold value indicates a lower limit value for determining the vibration level to be considered in the calculation process of the input information. On the other hand, the second threshold value is set higher than the first threshold value, and indicates a lower limit value for determining a large vibration level at which normal input operation is hardly expected. The vibration level between the first threshold value and the second threshold value means, for example, a medium level vibration that can maintain the input operation itself even if there is some vibration.

In S3, the vibration level is compared with the first threshold value. When the vibration level is smaller than the first threshold, the process proceeds to S14 to reset the timer. Then, in S15, the input detection determination reference value is set to the first value _Pr1 , and the process proceeds to S10, and an input permission instruction is issued to the position calculation program 103a. The position calculation program 103a adopts the first value P _r1 as the input detection determination reference value and compares P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ with this. As described above, the creation of the input information is executed only when any of P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ exceeds _Pr . Thereby, the malfunction which an apparatus responds to input too sensitively is prevented.

  On the other hand, if the vibration level is larger than the first threshold value in S3, the process proceeds to S4 (at this time, the value of the vibration level is additionally stored in the RAM 102 (FIG. 5)). It is determined whether or not the timer has already been started. If it has been started, the process proceeds to S5 to read the timer value. In S6, it is determined whether the timer value has passed a specified time. If the specified time has elapsed, it is determined that the high level of vibration continues to an extent that hinders the input determination, and the process proceeds to S7, where the average vibration is calculated based on the value of the vibration level stored in addition. Calculate the level. Since only the vibration level above the first threshold is sampled, the calculated average vibration level always exceeds the first threshold.

Therefore, in S8, the average vibration level is compared with a second threshold value. If it exceeds the second threshold value, the process proceeds to S12 to command the position calculation program 103a to prohibit input. In response to the input prohibition command, the position calculation program 103a operates so as not to accept a series of input operations from the touch operation input surface 120a, and uses the detected load levels P ₁₁ , P ₁₂ , P ₂₁ , and P ₂₂ . The input position coordinates are not calculated. On the other hand, if the second threshold value is not exceeded, it means that the average vibration level is between the first threshold value and the second threshold value, and the process proceeds to S9 where the above-mentioned input detection determination reference value is set to the first value P. The second value P _r2 = P _r1 + ΔP raised from _r1 by a certain increment ΔP is changed. In S10, an input permission instruction is issued to the position calculation program 103a.

On the position calculation program 103a side, the second value P _r2 is adopted as the input detection determination reference value, and P ₁₁ , P ₁₂ , P ₂₁ , P ₂₂ are compared with this. Since the input detection criterion value is raised to the second value _Pr2 in consideration of vibration continuation, even if a load derived from a slight contact not intended for input is biased by vibration, this is an effective input load level. The problem of being mistaken as is prevented. If the timer has not been activated in S4, the process proceeds to S13 to activate the timer, and proceeds to S10 to issue an input permission instruction to the position calculation program 103a.

  In S11, it is confirmed whether or not the IG switch is OFF. If not, the process returns to S2 to perform vibration level sampling, and the following processing is repeated. That is, the vibration level sampling in S2 is continuously repeated until the IG switch is turned off. In general, the duration of a touch operation for device operation is about 1 second at most. In order to be able to distinguish between a load continuation due to a touch operation and a load continuation due to vibration, an interval of vibration level sampling is set. It is desirable to set it shorter than 1/10 of the longest touch operation duration. For each branch routine from S3 onwards, the total execution time is set in the interval by appropriately inserting a waiting step not shown in FIG. 7 so that the desired interval is obtained in any branch. Keep it together. In this case, among the individual branch routines, the one that has the largest number of execution steps other than the standby step determines the minimum value of the sampling interval of the vibration level that can be employed.

And the following effects are achieved by repeating the process below S2. First, if the timer itself is not started in S4, this means that the vibration level has changed to a state exceeding the first threshold value for the first time, and the branch routine from S3 to S15 is executed in the immediately preceding repetition period. Therefore, the input detection determination reference value is the first value P _r1 . If the specified time has not elapsed in S6, the process has not proceeded to S7 and subsequent steps in the preceding repetition cycle, and similarly in the repetition cycle in which the vibration level has shifted to a state exceeding the first threshold, S15 is similarly performed. A branch routine to the side is executed, and the input detection determination reference value is the first value _Pr1 . That is, in any case, the input detection determination reference value is set to the first value _Pr1, and an instruction to permit input is issued to the position calculation program 103a in S10. Therefore, even if the state where the vibration level exceeds the first threshold is started, the input prohibition according to S12 or the input detection determination reference value according to S9 is not changed until it reaches a specified time (for example, 5 seconds or more). A series of input restriction control such as pulling up to the second value P _r2 is not executed.

On the other hand, when the state of vibration continuation is canceled by shifting from rough road traveling to paved road traveling, the vibration level sampled in S3 changes from a state exceeding the first threshold to a state below the first threshold. As a result, the process proceeds from S3 to S14, the timer is reset, and the input detection determination reference value is set to the first value _Pr1 in S15. As a result, a series of input restriction states such as prohibition of input according to S12 and pulling of the input detection determination reference value according to S9 to the second value _Pr2 can be canceled.

If it is confirmed that the state where the vibration level exceeds the first threshold value in S6 reaches the specified time and the state where the vibration level exceeds the first threshold value is continued in S3, the S14 side The timer is not reset unless it branches to, and the timer value read in S5 maintains the state in which the specified time has elapsed. Therefore, the input restriction state of S9 and S12 is continued. If the magnitude relationship in the comparison of the average vibration level of S8 with the second threshold value is reversed in the repetition cycle while the input restriction continues, the content of the input restriction is the second value of the input detection determination reference value. so that the switching between the input enable continued and the input prohibited by pulling to the P _r2. However, in a situation where the magnitude relationship is frequently reversed in a short period of time, the input permission state may be extremely intermittent and cause a kind of chattering. In this case, it is preferable to provide a certain dead zone for comparison with the second threshold (in this case, the input prohibited state may be held until the dead zone is escaped).

  In addition, as indicated by a one-dot chain line in FIG. 5, a dedicated vibration detection unit 132 (for example, a known configuration using a piezoelectric ceramic element or the like) can be provided in addition to the strain gauge unit 123 forming the load detection unit. Specifically, as indicated by a broken line in FIG. 4, the vibration detection unit 132 is disconnected from the load transmission path (that is, the elastic beam member 123) from the flat input body 120 (object to be operated) to the operation support unit 122. It is desirable to provide at a different position in order to avoid competition between the vibration to be detected and the operation load. In FIG. 4, the vibration detection unit 132 is provided on the operation support unit 122. In this case, the vibration level to be detected in S2 of FIG.

  As for the input restriction process, only one of raising the input detection determination reference value and prohibiting input may be executed. In FIG. 7, for example, when only raising the input detection determination reference value, S7, S8 and S12 can be omitted. Further, when only the input prohibition is performed, it is sufficient to use only the input detection determination reference value corresponding to the second value, and the steps relating to the default setting of the input detection determination reference value in S1 and the default return in S15. Further, S7, S8 and S9 can be omitted. Also, S10 is replaced with S12.

  Furthermore, in the present embodiment, the load detection unit is configured by a strain gauge, but the present invention is not limited to this. For example, as shown in FIG. 8, a piezoelectric ceramic element 323 is used, or a load detection unit is shown in FIG. As described above, a capacitive load sensor 423 can be used.

The schematic diagram which shows an example of the attachment form of the vehicle-mounted electronic device operating device used as the application object of this invention. The perspective view which shows an example of the external appearance of an operation part. The perspective view which shows the internal structure of an operation part. The block diagram which shows an example of the whole structure of the vehicle-mounted electronic device operating device of FIG. The block diagram which shows the detail of operation ECU periphery. The figure explaining the concept which calculates an input position coordinate based on the detected load level from each strain gauge unit. The flowchart which shows the flow of the process by an input control program. The schematic diagram which shows the 1st another example of a load detection part. The schematic diagram which shows the 2nd another example of a load detection part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation apparatus for vehicle-mounted electronic devices 10 Operation ECU
12 Input unit 12a Operation knob 120 Flat input body (object to be operated)
122 Operation support part 132 Vibration detection part 223 Strain gauge unit (load detection part, vibration detection part)
15 Monitor (display device)
101 CPU (input information generation / output means, input information generation / output control means, load level comparison means)

Claims (8)

A vehicle operating device that is attached to a position where a user seated on a seat can operate in a vehicle interior,
An operated object to which an operating force is applied by the user;
An operation support part for supporting the object to be operated in a form of receiving the operation force;
A plurality of loads that respectively detect loads transmitted to the operation support portion via the operated body along with the operation force on different load transmission paths from the operated body to the operation support portion. A detection unit;
Input information generation and output means for generating and outputting input information corresponding to the operation state of the operated body based on the load detection states of the plurality of load detection units;
A vibration detector for detecting vibration applied to the object to be operated;
Input information generation output control means for performing control for correcting or limiting the operation of the input information generation output means according to the vibration detection level detected by the vibration detection section;
A vehicle operating device comprising:   The input information generation / output control means limits the output of the input information only when a state in which the vibration detection level detected by the vibration detection unit exceeds a predetermined threshold is continued for a predetermined time or longer. The operation apparatus for vehicles as described.   The input information generation / output control unit is configured to prohibit the output of the input information when a vibration detection level detected by the vibration detection unit exceeds a predetermined threshold. The operation apparatus for vehicles as described.   The input information generation / output means includes load level comparison means for comparing each detected load level of the plurality of load detection units with a predetermined reference value, and the detected load level exceeds the reference value. The vehicle operating device according to any one of claims 1 to 3, wherein the input information is output only in a case.   The input information generation / output control means normally sets the reference value of the detected load level referred to by the load level comparison means when the vibration detection level detected by the vibration detection unit exceeds a predetermined threshold. The vehicular operating device according to claim 4, wherein the vehicle operating device is changed and set to be higher than the hour.   When the vibration detection level detected by the vibration detection unit exceeds a first threshold, the input information generation / output control means sets the reference value of the detected load level referred to by the load level comparison means from the normal time. 4. The vehicle according to claim 3, wherein the output of the input information is prohibited when the vibration detection level exceeds a second threshold value that is higher than the first threshold value. Operating device.   The vehicle operating device according to claim 1, wherein at least one of the plurality of load detection units is also used as the vibration detection unit.   7. The vibration detection unit according to claim 1, wherein the vibration detection unit is provided separately from the load detection unit at a position deviating from a load transmission path from the operated body to the operation support unit. The vehicle operating device described in 1.

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