JP2008033701A - Touch panel device - Google Patents

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JP2008033701A
JP2008033701A JP2006207376A JP2006207376A JP2008033701A JP 2008033701 A JP2008033701 A JP 2008033701A JP 2006207376 A JP2006207376 A JP 2006207376A JP 2006207376 A JP2006207376 A JP 2006207376A JP 2008033701 A JP2008033701 A JP 2008033701A
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touch panel
value
determination threshold
touch
touch sensor
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JP4419992B2 (en
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Kazuto Yamauchi
一人 山内
Yasunori Murayama
靖典 村山
Sadahiko Tanaka
貞彦 田中
Keitaro Takizawa
敬太郎 瀧澤
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Mitsubishi Motors Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a touch panel device, normally performing on/off operation regardless of wearing a glove. <P>SOLUTION: A reference value for determining a bare hand state or a gloved state is preliminarily regulated based on a resistance value of a touch sensor when bare hands touch. When a mechanical switch is operated, a resistance value of the touch sensor touched is measured, and the measured resistance value of the touch sensor is compared with the reference value (S2 and S3). When the resistance value is higher than the reference value, the gloved state is determined, and a determination threshold for determining ON/OFF of the touch panel is set lower than a determination threshold for bare hand to improve the sensitivity of the touch panel (S4). When the resistance value of the touch panel is lower than the reference value, the bare hand state is determined, and the determination threshold for determining ON/OFF of the touch panel is set to the determination threshold for bare hand. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、タッチパネル装置に関し、例えば、静電容量型、電界効果型のタッチパネルを用いたものに有用である。   The present invention relates to a touch panel device, and is useful, for example, for a device using a capacitance type or a field effect type touch panel.

車両のインストルメントパネルには、空調装置（エアコン）やオーディオ等を操作するためのスイッチが設けられており、車種毎に各々異なる機能のスイッチが複数配置されていた。   The instrument panel of the vehicle is provided with switches for operating an air conditioner (air conditioner), audio, and the like, and a plurality of switches having different functions are arranged for each vehicle type.

このようなスイッチには、機械的動作により接点の接続／切断を行って、該当機能のオン／オフを操作するメカニカルスイッチが用いられている。メカニカルスイッチは、その構造として、スイッチボディ、接点、基板等が必要であり、構造上、所定の厚さ（奥行き）が必要であり、又、スイッチ単体のコストを低減することにも限界があった。又、車種毎に各々異なる機能のスイッチを複数配置する必要があるため、組み込み時の手順が煩雑になり、組み込みコストも高いものであった。加えて、メカニカルスイッチの操作には押し込みストロークが必要であるが、より操作性がよく、更に、商品性（デザイン性）のよいものも求められていた。   As such a switch, a mechanical switch for connecting / disconnecting a contact by a mechanical operation and operating on / off of a corresponding function is used. A mechanical switch requires a switch body, contacts, board, etc. as its structure, which requires a certain thickness (depth), and there is a limit to reducing the cost of the switch alone. It was. Further, since it is necessary to arrange a plurality of switches having different functions for each vehicle type, the procedure for assembling becomes complicated and the assembling cost is high. In addition, a push stroke is required for the operation of the mechanical switch. However, there is a demand for a product with better operability and good merchantability (design).

上記問題点を改善するため、上記メカニカルスイッチに替わって、タッチパネルの使用が検討されている。タッチパネルは、複数のスイッチをパネル面上に一体に形成可能であり、製造コストを低減できると共に、組み込み時の手順が少なくなり、組み込みコストも低減可能なものである。又、操作時の押し込みストロークは不要であり、接触することで、該当機能のオン／オフを操作することができ、操作性の向上も望めるものである。タッチパネルには、例えば、静電容量型、電界効果型等がある。静電容量型や電界効果型のタッチパネルは、従来のメカニカルスイッチに対して、その厚さを薄くすることが可能であり、かつ、パネル自体の形状の自由度も高いものであった。   In order to improve the above problems, use of a touch panel is being considered in place of the mechanical switch. In the touch panel, a plurality of switches can be integrally formed on the panel surface, so that the manufacturing cost can be reduced, the procedure for assembling is reduced, and the assembling cost can be reduced. In addition, a pushing stroke at the time of operation is unnecessary, and it is possible to turn on / off the corresponding function by touching, and it is possible to improve operability. Examples of the touch panel include a capacitance type and a field effect type. Capacitance type and field effect type touch panels can be made thinner than conventional mechanical switches and have a high degree of freedom in the shape of the panel itself.

特開２００４−２４５６０６号公報Japanese Patent Laid-Open No. 2004-245606

上述したように、静電容量型、電界効果型のタッチパネルは、厚さを薄くできると共に形状の自由度も高く、又、コストの低減も可能なものである。ところが、車両に搭載したタッチパネルを操作する場合、必ずしも素手で操作するとは限らず、手袋をした状態でタッチパネルを操作することもある。その場合、手袋の有無、厚さ等により、静電容量型、電界効果型のタッチパネルの感度が相違し、タッチパネルのスイッチ部分にタッチしたにもかかわらず、オン／オフ操作を正常に行えないことがあった。   As described above, the capacitance type and field effect type touch panels can be reduced in thickness, have a high degree of freedom in shape, and can reduce costs. However, when operating a touch panel mounted on a vehicle, the touch panel is not always operated with bare hands, and the touch panel may be operated in a gloved state. In that case, the sensitivity of the capacitive type and field effect type touch panel is different depending on the presence / absence of gloves, thickness, etc., and the on / off operation cannot be performed normally even though the switch part of the touch panel is touched. was there.

本発明は上記課題に鑑みなされたもので、手袋の有無によらず、オン／オフ操作を正常に行うことができるタッチパネル装置を提供することを目的とする。   This invention is made | formed in view of the said subject, and it aims at providing the touchscreen apparatus which can perform on / off operation normally regardless of the presence or absence of a glove.

上記課題を解決する第１の発明に係るタッチパネル装置は、
車両のインストルメントパネルに配設された静電容量型又は電界効果型のタッチパネルと、
車両の少なくとも１つのメカニカルスイッチに設けられ、該メカニカルスイッチの接触部分に配置された静電容量型又は電界効果型のタッチセンサと、
前記タッチパネルの感度を変更する制御手段とを備え、
前記制御手段は、
素手で接触したときの前記タッチセンサの抵抗値又は電圧値又はインピーダンスに基づいて、素手であるか手袋装着状態であるかを判断する基準値を有し、
前記メカニカルスイッチが操作された際に、接触された前記タッチセンサの抵抗値又は電圧値又はインピーダンスを測定すると共に、測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスを前記基準値と比較し、
測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスが前記基準値より高い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低く設定して、前記タッチパネルの感度を向上させ、
測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスが前記基準値より低い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定することを特徴とする。 A touch panel device according to a first invention for solving the above-mentioned problems is as follows.
A capacitive-type or field-effect type touch panel disposed on the instrument panel of the vehicle;
A capacitance-type or field-effect type touch sensor provided in at least one mechanical switch of the vehicle and disposed at a contact portion of the mechanical switch;
Control means for changing the sensitivity of the touch panel,
The control means includes
Based on the resistance value or voltage value or impedance of the touch sensor when touched with a bare hand, it has a reference value for judging whether it is a bare hand or a glove wearing state,
When the mechanical switch is operated, the resistance value, voltage value, or impedance of the touch sensor that is touched is measured, and the measured resistance value, voltage value, or impedance of the touch sensor is compared with the reference value. ,
When the measured resistance value, voltage value, or impedance of the touch sensor is higher than the reference value, it is determined as a glove wearing state, and a determination threshold value for determining whether the touch panel is on or off is determined as a determination threshold value for bare hands Set it lower to improve the sensitivity of the touch panel,
When the measured resistance value, voltage value, or impedance of the touch sensor is lower than the reference value, it is determined that the touch sensor is a bare hand, and a determination threshold value for determining whether the touch panel is on or off is determined as a determination threshold value for a bare hand. It is characterized by setting to.

上記課題を解決する第２の発明に係るタッチパネル装置は、
車両のインストルメントパネルに配設された静電容量型又は電界効果型のタッチパネルと、
車両の少なくとも１つのメカニカルスイッチに設けられ、該メカニカルスイッチの接触部分に配置された静電容量型又は電界効果型のタッチセンサと、
前記タッチパネルの感度を変更する制御手段とを備え、
前記制御手段は、
素手で接触したときの前記タッチセンサの電流値又は電気容量に基づいて、素手であるか手袋装着状態であるかを判断する基準値を有し、
前記メカニカルスイッチが操作された際に、接触された前記タッチセンサの電流値又は電気容量を測定すると共に、測定された前記タッチセンサの電流値又は電気容量を前記基準値と比較し、
測定された前記タッチセンサの電流値又は電気容量が前記基準値より低い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低く設定して、前記タッチパネルの感度を向上させ、
測定された前記タッチセンサの電流値又は電気容量が前記基準値より高い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定することを特徴とする。 A touch panel device according to a second invention for solving the above-mentioned problems is as follows.
A capacitive-type or field-effect type touch panel disposed on the instrument panel of the vehicle;
A capacitance-type or field-effect type touch sensor provided in at least one mechanical switch of the vehicle and disposed at a contact portion of the mechanical switch;
Control means for changing the sensitivity of the touch panel,
The control means includes
Based on the current value or electric capacity of the touch sensor when touched with a bare hand, it has a reference value for judging whether it is a bare hand or a glove wearing state,
When the mechanical switch is operated, the current value or capacitance of the touch sensor that is touched is measured, and the measured current value or capacitance of the touch sensor is compared with the reference value.
When the measured current value or capacitance of the touch sensor is lower than the reference value, it is determined that the glove is worn, and the determination threshold value for determining whether the touch panel is on or off is lower than the determination threshold value for bare hands. Set to improve the sensitivity of the touch panel,
When the measured current value or electric capacity of the touch sensor is higher than the reference value, it is determined that the touch sensor is a bare hand, and a determination threshold value for determining whether the touch panel is on or off is set as a determination threshold value for a bare hand. It is characterized by doing.

上記課題を解決する第３の発明に係るタッチパネル装置は、
上記第１又は第２の発明に記載のタッチパネル装置において、
前記制御手段は、
更に、
前記タッチパネルの操作時に、接触された前記タッチパネルの入力の大きさを検出すると共に、検出された入力の大きさを素手のときの判断閾値と比較し、
前記タッチパネルの入力の大きさが素手のときの判断閾値より高い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定し、
前記タッチパネルの入力の大きさが素手のときの判断閾値より低い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低い判断閾値に維持することを特徴とする。 A touch panel device according to a third aspect of the present invention for solving the above problem is as follows.
In the touch panel device according to the first or second invention,
The control means includes
Furthermore,
When operating the touch panel, it detects the magnitude of the input of the touch panel that is touched, and compares the detected magnitude of the input with the determination threshold when bare hands,
If the input value of the touch panel is higher than the determination threshold for bare hands, it is determined to be a bare hand, and the determination threshold for determining on / off of the touch panel is set as the determination threshold for bare hands,
When the input value of the touch panel is lower than a determination threshold value for a bare hand, it is determined that a glove is worn, and the determination threshold value for determining on / off of the touch panel is a determination threshold value lower than the determination threshold value for a bare hand It is characterized by maintaining.

上記課題を解決する第４の発明に係るタッチパネル装置は、
上記第１乃至第３のいずれかの発明に記載のタッチパネル装置において、
タッチセンサを設けたメカニカルスイッチを、少なくとも、車両のスタートキー、又は、プッシュスタートスイッチ又はドアアウターハンドルとし、
前記制御手段は、
乗車前後に初めて前記スタートキー又は前記プッシュスタートスイッチ又は前記ドアアウターハンドルが操作されたときに、前記スタートキー又は前記プッシュスタートスイッチ又は前記ドアアウターハンドルのタッチセンサの抵抗値又は電圧値又はインピーダンス又は電流値又は電気容量のいずれかを測定することを特徴とする。 A touch panel device according to a fourth invention for solving the above-mentioned problems is as follows.
In the touch panel device according to any one of the first to third inventions,
The mechanical switch provided with the touch sensor is at least a vehicle start key, or a push start switch or a door outer handle,
The control means includes
When the start key, the push start switch, or the door outer handle is operated for the first time before and after boarding, the resistance value, voltage value, impedance, or current of the touch sensor of the start key, the push start switch, or the door outer handle. It is characterized by measuring either the value or the capacitance.

本発明に係るタッチパネル装置によれば、既存のメカニカルスイッチに静電容量型又は電界効果型のタッチセンサを設け、メカニカルスイッチ操作時に接触するタッチセンサの抵抗値（又は、電圧値、インピーダンス、電流値、電気容量）を測定し、その測定値と基準値とを比較することにより、素手であるか手袋装着状態であるかを判断し、手袋装着時には静電容量型又は電界効果型のタッチパネルの感度を上げる（判断閾値を低減する）ので、素手での操作時と同様に、手袋装着状態での操作時も、タッチパネルのオン／オフ操作を正常に行うことができ、タッチパネルを快適に使用することができる。   According to the touch panel device of the present invention, a capacitance type or field effect type touch sensor is provided on an existing mechanical switch, and the resistance value (or voltage value, impedance, current value) of the touch sensor that is in contact with the mechanical switch when operated. , Electrical capacitance) and comparing the measured value with a reference value to determine whether it is bare or gloved, and the sensitivity of the capacitive or field effect touch panel when wearing the glove The touch panel can be turned on and off normally when operating with gloves on, as well as with bare hands, and the touch panel should be used comfortably. Can do.

又、タッチパネル操作時の入力の大きさを監視し、素手で操作するときの判断閾値と比較することにより、装着していた手袋を脱いだかどうかを適時に判断し、タッチパネルの感度が過度に高い状態を防止して、タッチパネルの誤作動を防止することができる。   In addition, by monitoring the size of the input when operating the touch panel and comparing it with the judgment threshold when operating with bare hands, it is timely determined whether the gloves that were worn are removed, and the sensitivity of the touch panel is excessively high This prevents the touch panel from malfunctioning.

更に、車両のスタートキー、又は、プッシュスタートスイッチ、又は、ドアアウターハンドルといった車両を使用する際に使用者が通常必ず触れる箇所にタッチセンサを設け、乗車前後に初めてスタートキー又はプッシュスタートスイッチ又はドアアウターハンドルを操作したときに、タッチセンサの抵抗値（又は、電圧値、インピーダンス、電流値、電気容量）を測定するので、特別な操作を乗員が行うことなく、タッチパネルの感度を自動的に設定することができる。   Furthermore, when using a vehicle such as a vehicle start key, a push start switch, or a door outer handle, a touch sensor is usually provided where the user always touches, and the start key or push start switch or door is the first time before and after boarding. When the outer handle is operated, the touch sensor's resistance value (or voltage value, impedance, current value, electric capacity) is measured, so the sensitivity of the touch panel is automatically set without any special operation by the passenger. can do.

以下、図１〜図５を用いて、本発明に係るタッチパネル装置を詳細に説明する。   Hereinafter, the touch panel device according to the present invention will be described in detail with reference to FIGS.

図１は、タッチパネルが配置されたインストルメントパネルを示す概略図であり、図２（ａ）は、タッチパネル内のタッチスイッチのレイアウト例を示す斜視図であり、図２（ｂ）、（ｃ）は、タッチパネルのタッチスイッチの断面図である。又、図３は、本発明に係るタッチパネル装置のブロック図であり、又、図４は、本発明に係るタッチパネル装置のフローチャートであり、図５は、本発明に係るタッチパネル装置における判断閾値を説明するグラフである。   FIG. 1 is a schematic view showing an instrument panel on which a touch panel is arranged, and FIG. 2A is a perspective view showing a layout example of touch switches in the touch panel, and FIGS. FIG. 4 is a cross-sectional view of a touch switch of a touch panel. FIG. 3 is a block diagram of the touch panel device according to the present invention, FIG. 4 is a flowchart of the touch panel device according to the present invention, and FIG. 5 illustrates a determination threshold in the touch panel device according to the present invention. It is a graph to do.

本発明に係るタッチパネル装置のタッチパネル１は静電容量型（又は、電界効果型）のものであり、図１に示すように、車両のインストルメントパネル２に搭載される。又、ステアリング３の近傍に設けられたメカニカルスイッチであるスタートキー４Ａ又はプッシュ式エンジンスタートスイッチ（以降、プッシュスイッチと呼ぶ。）４Ｂには、その接触部分にタッチセンサ９Ａ、９Ｂが設けられている。   A touch panel 1 of a touch panel device according to the present invention is of a capacitance type (or field effect type) and is mounted on an instrument panel 2 of a vehicle as shown in FIG. The touch key 9A or push engine start switch (hereinafter referred to as a push switch) 4B, which is a mechanical switch provided in the vicinity of the steering wheel 3, is provided with touch sensors 9A and 9B at contact portions thereof. .

スタートキー４Ａは、キー方式の操作機器であり、スタートキー４Ａの内部に金属製のキーに接触する静電容量型（又は、電界効果型）のタッチセンサ９Ａを設け、キーをＡＣＣ位置又はＯＮ位置とした時にタッチセンサ９Ａの抵抗値（又は、電圧値、インピーダンス、電流値、電気容量）を測定することにより、金属製のキー保持する乗員の手と共に測定を行っている。又、プッシュスイッチ４Ｂは、キーレスエントリー式の操作機器であり、プッシュスイッチ４Ｂの表面に静電容量型（又は、電界効果型）のタッチセンサ９Ｂを設け、プッシュスイッチ９Ｂの押下時にタッチセンサ９Ｂの抵抗値（又は、電圧値、インピーダンス、電流値、電気容量）を測定することにより、プッシュスイッチ９Ｂを押下する乗員の手と共に測定を行っている。そして、詳細は後述するが、タッチセンサ９Ａ、９Ｂで測定された抵抗値等から、手袋使用の有無を判断し、タッチパネルの感度調整（判断閾値の設定）を行っている。   The start key 4A is a key-type operating device, and a capacitance type (or field effect type) touch sensor 9A that contacts a metal key is provided inside the start key 4A, and the key is set to the ACC position or ON. By measuring the resistance value (or voltage value, impedance, current value, electric capacity) of the touch sensor 9A when the position is set, the measurement is performed together with the hand of the occupant holding the metal key. The push switch 4B is a keyless entry type operation device, and a capacitance type (or field effect type) touch sensor 9B is provided on the surface of the push switch 4B, and when the push switch 9B is pressed, By measuring the resistance value (or voltage value, impedance, current value, electric capacity), the measurement is performed together with the hand of the passenger pressing the push switch 9B. Although details will be described later, the presence or absence of use of gloves is determined from resistance values measured by the touch sensors 9A and 9B, and sensitivity adjustment of the touch panel (setting of a determination threshold value) is performed.

なお、スタートキー４Ａ又はプッシュスイッチ４Ｂに設けたタッチセンサ９Ａ、９Ｂに加えて、ドアアウターハンドル、ステアリング、既存のメカニカルスイッチ等にも同機能を有するタッチセンサを設け、ドアアウターハンドル、ステアリング、既存のメカニカルスイッチ等の操作時に、このタッチセンサの抵抗値等を測定することにより、手袋装着の有無を判断し、その判断をタッチパネル１の感度にフィードバックするようにしてもよい。   In addition to the touch sensors 9A and 9B provided on the start key 4A or the push switch 4B, a touch sensor having the same function is provided on the door outer handle, steering, existing mechanical switch, etc., and the door outer handle, steering, existing When operating the mechanical switch or the like, the resistance value of the touch sensor or the like may be measured to determine whether or not gloves are worn, and the determination may be fed back to the sensitivity of the touch panel 1.

又、スタートキー４Ａ又はプッシュスイッチ４Ｂに設けたタッチセンサ９Ａ、９Ｂに換えて、感度調整のためのみの専用のメカニカルスイッチ４Ｃをタッチパネル１に設け、そのメカニカルスイッチ４Ｃの表面にタッチセンサ９Ｃを配置するようにしてもよい。この場合、メカニカルスイッチ４Ｃ操作時に、タッチセンサ９Ｃの抵抗値等を測定して、手袋装着の有無を判断し、その判断をタッチパネル１の感度にフィードバックすることになる。この場合、タッチパネル１のみで感度設定が完結可能な構成となる。   Further, in place of the touch sensors 9A and 9B provided on the start key 4A or the push switch 4B, a dedicated mechanical switch 4C only for sensitivity adjustment is provided on the touch panel 1, and the touch sensor 9C is disposed on the surface of the mechanical switch 4C. You may make it do. In this case, when the mechanical switch 4 </ b> C is operated, the resistance value of the touch sensor 9 </ b> C is measured to determine whether or not gloves are worn, and the determination is fed back to the sensitivity of the touch panel 1. In this case, the sensitivity setting can be completed with only the touch panel 1.

タッチパネル１は、一例として、図２（ａ）に示すようなレイアウトのタッチスイッチ５ａ、５ｂを複数配設したものである。具体的には、オーディオ操作用の複数のタッチスイッチ５ａやエアコン操作用の複数のタッチスイッチ５ｂを有し、これらを一体のパネル上に形成したものである。これらのタッチスイッチ５ａ、５ｂは、図２（ｂ）又は図２（ｃ）に示すように、スイッチ部分が凹状又は凸状に形成されており、手で触れた際、感触でスイッチであることがわかるようになっている。   As an example, the touch panel 1 includes a plurality of touch switches 5a and 5b having a layout as shown in FIG. Specifically, it has a plurality of touch switches 5a for operating audio and a plurality of touch switches 5b for operating air conditioners, which are formed on an integrated panel. As shown in FIG. 2B or 2C, these touch switches 5a and 5b have a switch portion formed in a concave shape or a convex shape, and are touch switches when touched by hand. Can be understood.

静電容量型（又は電界効果型）のタッチパネル１は、その形状の自由度が高く、例えば、図２（ａ）に示すように、ＣＤやＭＤの挿入孔６を形成したり、タッチスイッチ５ａ、５ｂだけではなく、ボリューム等の可変抵抗器やロータリースイッチ等の電子部品７を配設したりすることも可能である。   The capacitance type (or field effect type) touch panel 1 has a high degree of freedom in its shape. For example, as shown in FIG. 2A, a CD or MD insertion hole 6 is formed, or a touch switch 5a. It is also possible to arrange not only 5b but also an electronic component 7 such as a variable resistor such as a volume or a rotary switch.

上記構成のタッチパネル１は、図３に示すように、制御手段であるタッチパネルＥＣＵ（Electronics Control Unit；電子制御装置）８より制御されているが、このタッチパネルＥＣＵ８は、スタートキー４Ａ又はプッシュスイッチ４Ｂに設けたタッチセンサ９Ａ、９Ｂの抵抗値等やタッチパネル１のタッチスイッチ５ａ、５ｂの入力の大きさを監視することにより、タッチスイッチ５ａ、５ｂの感度を最適な設定に制御している。なお、タッチセンサ９Ａ、９Ｂとタッチスイッチ５ａ、５ｂは同等の物理特性を有し、タッチスイッチ５ａ、５ｂは、その感度設定を確認するために用いられている。   As shown in FIG. 3, the touch panel 1 having the above-described configuration is controlled by a touch panel ECU (Electronics Control Unit) 8 serving as a control unit. The touch panel ECU 8 is connected to a start key 4A or a push switch 4B. By monitoring the resistance values of the provided touch sensors 9A and 9B and the input magnitude of the touch switches 5a and 5b of the touch panel 1, the sensitivity of the touch switches 5a and 5b is controlled to an optimum setting. Note that the touch sensors 9A and 9B and the touch switches 5a and 5b have the same physical characteristics, and the touch switches 5a and 5b are used to check the sensitivity setting.

次に、タッチパネル１のタッチスイッチ５ａ、５ｂの感度を最適に設定する手順について、図４、図５を参照して、説明を行う。   Next, a procedure for optimally setting the sensitivity of the touch switches 5a and 5b of the touch panel 1 will be described with reference to FIGS.

最初に、スタートキー４ＡをＡＣＣ位置若しくはＯＮ位置にするか、又は、プッシュスイッチ４ＢをＯＮにする。その際、スタートキー４Ａ又はプッシュスイッチ４Ｂに設けたタッチセンサ９Ａ、９Ｂの抵抗値を測定することにより、乗員の手と共に測定を行っている。なお、タッチセンサ９Ａ、９Ｂの抵抗値に替えて、タッチセンサの電圧値、インピーダンス、電流値、電気容量を測定してもよい（ステップＳ１、Ｓ２）。   First, the start key 4A is set to the ACC position or the ON position, or the push switch 4B is turned ON. At that time, measurement is performed together with the occupant's hand by measuring resistance values of the touch sensors 9A and 9B provided on the start key 4A or the push switch 4B. Note that the voltage value, impedance, current value, and capacitance of the touch sensor may be measured instead of the resistance values of the touch sensors 9A and 9B (steps S1 and S2).

ステップＳ２で測定したタッチセンサ９Ａ、９Ｂの抵抗値を基準値より高いか低いか比較する（ステップＳ３）。測定したタッチセンサ９Ａ、９Ｂの抵抗値が基準値より高い場合には、ステップＳ４へ進み、低い場合には、ステップＳ７へ進む。なお、測定値及び基準値として電圧値、インピーダンスを用いる場合には、ステップＳ３の分岐は、測定したタッチセンサ９Ａ、９Ｂの電圧値、インピーダンスが基準値より高い場合には、ステップＳ４へ進み、低い場合には、ステップＳ７へ進むことになり、又、測定値及び基準値として電流値、電気容量を用いる場合には、ステップＳ３の分岐は、測定したタッチセンサ９Ａ、９Ｂの電流値、電気容量が基準値より低い場合には、ステップＳ４へ進み、高い場合には、ステップＳ７へ進むことになる。又、基準値は、素手で接触したときのタッチセンサ９Ａ、９Ｂの抵抗値、電圧値、インピーダンス、電流値、電気容量に基づいて、素手であるか手袋装着状態であるかを判断する値である。   The resistance values of the touch sensors 9A and 9B measured in step S2 are compared to be higher or lower than the reference value (step S3). If the measured resistance values of the touch sensors 9A and 9B are higher than the reference value, the process proceeds to step S4, and if lower, the process proceeds to step S7. When the voltage value and the impedance are used as the measurement value and the reference value, the branch of step S3 proceeds to step S4 when the measured voltage value and impedance of the touch sensors 9A and 9B are higher than the reference value. If it is lower, the process proceeds to step S7. If the current value and the capacitance are used as the measurement value and the reference value, the branch of step S3 is the current value of the measured touch sensors 9A and 9B, If the capacity is lower than the reference value, the process proceeds to step S4. If the capacity is higher, the process proceeds to step S7. Further, the reference value is a value for determining whether the hand is a bare hand or a glove wearing state based on the resistance value, voltage value, impedance, current value, and electric capacity of the touch sensors 9A and 9B when touched with the bare hand. is there.

測定したタッチセンサ９Ａ、９Ｂの抵抗値が基準値より高い場合、乗員が手袋を装着していると判断し、タッチパネル１のタッチスイッチ５ａ、５ｂの判断閾値を下げる（感度を上げる）。つまり、図５のグラフに示すように、判断閾値を判断閾値Ｔｂに下げ、タッチスイッチ５ａ、５ｂでの入力の大きさが小さくても、正常にオン／オフを判断できるようにしている（ステップＳ４）。なお、図５のグラフに示す判断閾値Ｔａは、素手においてオン／オフを判断する判断閾値である。又、タッチスイッチ５ａ、５ｂには、湿度等の要因により変動する微少放電があるが、時間平均を取って相殺することにより、判断閾値を判断閾値Ｔｂに下げた場合でも、正常にオン／オフを判断できるようにしている。   When the measured resistance values of the touch sensors 9A and 9B are higher than the reference value, it is determined that the occupant is wearing gloves, and the determination threshold value of the touch switches 5a and 5b of the touch panel 1 is decreased (sensitivity is increased). That is, as shown in the graph of FIG. 5, the judgment threshold value is lowered to the judgment threshold value Tb, so that the on / off state can be judged normally even if the input magnitude of the touch switches 5a and 5b is small (step). S4). Note that the determination threshold Ta shown in the graph of FIG. 5 is a determination threshold for determining on / off with bare hands. The touch switches 5a and 5b have slight discharges that fluctuate due to factors such as humidity, but even if the judgment threshold is lowered to the judgment threshold Tb by offsetting by taking a time average, it is normally turned on / off. Can be judged.

素手に対する判断閾値Ｔａに対して、タッチスイッチ５ａ、５ｂにおける入力の大きさを監視し、その判断閾値Ｔａより高いか低いかを比較する（ステップＳ５、Ｓ６）。タッチスイッチ５ａ、５ｂの入力の大きさが判断閾値Ｔａより高い場合には、ステップＳ７に進み、低い場合には、ステップＳ８へ進む。   The magnitude of the input at the touch switches 5a and 5b is monitored with respect to the judgment threshold Ta for the bare hand, and it is compared whether it is higher or lower than the judgment threshold Ta (steps S5 and S6). If the input magnitude of the touch switches 5a and 5b is higher than the determination threshold Ta, the process proceeds to step S7, and if lower, the process proceeds to step S8.

ステップＳ３において、測定したタッチセンサ９の抵抗値が基準値より低い場合、又は、ステップＳ６において、タッチスイッチ５ａ、５ｂの入力の大きさが判断閾値Ｔａより高い場合、乗員が素手であると判断し、タッチスイッチ５ａ、５ｂの感度を通常感度、つまり、判断閾値Ｔａに設定する（ステップＳ７）。   If the measured resistance value of the touch sensor 9 is lower than the reference value in step S3, or if the input magnitude of the touch switches 5a and 5b is higher than the determination threshold Ta in step S6, it is determined that the occupant is bare hands. Then, the sensitivity of the touch switches 5a and 5b is set to the normal sensitivity, that is, the determination threshold value Ta (step S7).

これは、その後、乗員が手袋を外し、素手で操作した場合を考慮して、高感度状態における誤作動を防止するためである。つまり、素手で操作したことにより、手袋装着状態に対する判断閾値Ｔｂを大きくオーバーする入力が得られたときには、素手操作時の感度（判断閾値Ｔａ）に自動的に変更するものである。   This is to prevent malfunction in the high sensitivity state in consideration of the case where the occupant then removes the gloves and operates with bare hands. That is, when an input that greatly exceeds the determination threshold Tb for the glove wearing state is obtained by operating with bare hands, the sensitivity is automatically changed to the sensitivity (determination threshold Ta) during bare hand operation.

そして、ステップＳ７の後、既存の他のメカニカルスイッチ（タッチセンサ内蔵）の操作があるかどうか監視し、既存のメカニカルスイッチの操作があるまでステップＳ７、Ｓ８をループし、操作があった場合のみ、ステップＳ２へ進んで、上述した手順を繰り返す（ステップＳ８）。   Then, after step S7, it is monitored whether there is an operation of another existing mechanical switch (built-in touch sensor), and steps S7 and S8 are looped until there is an operation of the existing mechanical switch. The process proceeds to step S2, and the above-described procedure is repeated (step S8).

又、ステップＳ６において、タッチスイッチ５ａ、５ｂの入力の大きさが判断閾値Ｔａより低い場合には、既存の他のメカニカルスイッチ（タッチセンサ内蔵）の操作があるかどうか監視し、既存のメカニカルスイッチの操作があるまでステップＳ５、Ｓ６、Ｓ９をループし、操作があった場合、ステップＳ２へ進んで、上述した手順を繰り返す（ステップＳ９）。   In step S6, when the input magnitude of the touch switches 5a and 5b is lower than the judgment threshold Ta, the existing mechanical switch is monitored to determine whether there is an operation of another existing mechanical switch (built-in touch sensor). Steps S5, S6, and S9 are looped until the operation is performed. If there is an operation, the process proceeds to step S2 to repeat the above-described procedure (step S9).

このように、本発明に係るタッチパネル装置では、タッチパネルＥＣＵ８が、タッチセンサ９Ａ、９Ｂ等の測定値に基づいて、素手による操作か手袋による操作かを判断し、タッチパネルの感度（判断閾値）を自動的に調整しており、更に、タッチパネル自体の入力の大きさから、感度の設定が適切か確認して、手袋使用の有無によらず、タッチパネルのオン／オフを正常に検知している。   As described above, in the touch panel device according to the present invention, the touch panel ECU 8 determines whether the operation is a bare hand operation or a glove operation based on the measurement values of the touch sensors 9A, 9B, and the touch panel sensitivity (determination threshold) is automatically set. Furthermore, it is confirmed that the sensitivity setting is appropriate from the input size of the touch panel itself, and whether the touch panel is on or off is normally detected regardless of whether or not gloves are used.

なお、図４に示したフローチャートでは、判断閾値を２段階としたものであるが、タッチセンサ９Ａ、９Ｂの測定値の大きさに応じて、多段階に若しくは連続的に判断閾値を変更するようにしてもよい。このことにより、例えば、手袋の厚さに応じて、適切な感度を設定することが可能となる。   In the flowchart shown in FIG. 4, the determination threshold value is set to two stages. However, the determination threshold value is changed in multiple stages or continuously according to the measurement values of the touch sensors 9A and 9B. It may be. This makes it possible to set an appropriate sensitivity according to the thickness of the glove, for example.

本発明は、車両に搭載される静電容量型又は電界効果型のタッチパネルに有用なものであるが、手袋を使用して操作する静電容量型又は電界効果型のタッチパネルであれば、他の機器に搭載されるものでもよい。   The present invention is useful for a capacitive type or field effect type touch panel mounted on a vehicle, but any other capacitive type or field effect type touch panel operated using gloves can be used. It may be mounted on equipment.

タッチパネルが配置されたインストルメントパネルを示す概略図である。It is the schematic which shows the instrument panel by which the touch panel is arrange | positioned. （ａ）は、タッチパネル内のタッチスイッチのレイアウト例を示す斜視図であり、（ｂ）、（ｃ）は、タッチパネルのタッチスイッチの断面図である。(A) is a perspective view which shows the example of a layout of the touch switch in a touchscreen, (b), (c) is sectional drawing of the touchswitch of a touchscreen. 本発明に係るタッチパネル装置のブロック図である。1 is a block diagram of a touch panel device according to the present invention. 本発明に係るタッチパネル装置の動作を説明するフローチャートである。It is a flowchart explaining operation | movement of the touchscreen apparatus which concerns on this invention. 本発明に係るタッチパネル装置における判断閾値を説明するグラフである。It is a graph explaining the judgment threshold value in the touch panel apparatus which concerns on this invention.

符号の説明Explanation of symbols

１ タッチパネル装置
２ インストルメントパネル
３ ステアリング
４Ａ スタートキー
４Ｂ プッシュ式エンジンスタートスイッチ
４Ｃ メカニカルスイッチ
５ａ、５ｂ タッチスイッチ
８ タッチパネルＥＣＵ
９Ａ、９Ｂ、９Ｃ タッチセンサ DESCRIPTION OF SYMBOLS 1 Touch panel apparatus 2 Instrument panel 3 Steering 4A Start key 4B Push type engine start switch 4C Mechanical switch 5a, 5b Touch switch 8 Touch panel ECU
9A, 9B, 9C Touch sensor

Claims (4)

車両のインストルメントパネルに配設された静電容量型又は電界効果型のタッチパネルと、
車両の少なくとも１つのメカニカルスイッチに設けられ、該メカニカルスイッチの接触部分に配置された静電容量型又は電界効果型のタッチセンサと、
前記タッチパネルの感度を変更する制御手段とを備え、
前記制御手段は、
素手で接触したときの前記タッチセンサの抵抗値又は電圧値又はインピーダンスに基づいて、素手であるか手袋装着状態であるかを判断する基準値を有し、
前記メカニカルスイッチが操作された際に、接触された前記タッチセンサの抵抗値又は電圧値又はインピーダンスを測定すると共に、測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスを前記基準値と比較し、
測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスが前記基準値より高い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低く設定して、前記タッチパネルの感度を向上させ、
測定された前記タッチセンサの抵抗値又は電圧値又はインピーダンスが前記基準値より低い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定することを特徴とするタッチパネル装置。 A capacitive-type or field-effect type touch panel disposed on the instrument panel of the vehicle;
A capacitance-type or field-effect type touch sensor provided in at least one mechanical switch of the vehicle and disposed at a contact portion of the mechanical switch;
Control means for changing the sensitivity of the touch panel,
The control means includes
Based on the resistance value or voltage value or impedance of the touch sensor when touched with a bare hand, it has a reference value for judging whether it is a bare hand or a glove wearing state,
When the mechanical switch is operated, the resistance value, voltage value, or impedance of the touch sensor that is touched is measured, and the measured resistance value, voltage value, or impedance of the touch sensor is compared with the reference value. ,
When the measured resistance value, voltage value, or impedance of the touch sensor is higher than the reference value, it is determined as a glove wearing state, and a determination threshold value for determining whether the touch panel is on or off is determined as a determination threshold value for bare hands Set it lower to improve the sensitivity of the touch panel,
When the measured resistance value, voltage value, or impedance of the touch sensor is lower than the reference value, it is determined that the touch sensor is a bare hand, and a determination threshold value for determining whether the touch panel is on or off is determined as a determination threshold value for a bare hand. A touch panel device characterized by being set to. 車両のインストルメントパネルに配設された静電容量型又は電界効果型のタッチパネルと、
車両の少なくとも１つのメカニカルスイッチに設けられ、該メカニカルスイッチの接触部分に配置された静電容量型又は電界効果型のタッチセンサと、
前記タッチパネルの感度を変更する制御手段とを備え、
前記制御手段は、
素手で接触したときの前記タッチセンサの電流値又は電気容量に基づいて、素手であるか手袋装着状態であるかを判断する基準値を有し、
前記メカニカルスイッチが操作された際に、接触された前記タッチセンサの電流値又は電気容量を測定すると共に、測定された前記タッチセンサの電流値又は電気容量を前記基準値と比較し、
測定された前記タッチセンサの電流値又は電気容量が前記基準値より低い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低く設定して、前記タッチパネルの感度を向上させ、
測定された前記タッチセンサの電流値又は電気容量が前記基準値より高い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定することを特徴とするタッチパネル装置。 A capacitive-type or field-effect type touch panel disposed on the instrument panel of the vehicle;
A capacitance-type or field-effect type touch sensor provided in at least one mechanical switch of the vehicle and disposed at a contact portion of the mechanical switch;
Control means for changing the sensitivity of the touch panel,
The control means includes
Based on the current value or electric capacity of the touch sensor when touched with a bare hand, it has a reference value for judging whether it is a bare hand or a glove wearing state
When the mechanical switch is operated, the current value or capacitance of the touch sensor that is touched is measured, and the measured current value or capacitance of the touch sensor is compared with the reference value.
When the measured current value or capacitance of the touch sensor is lower than the reference value, it is determined that the glove is worn, and the determination threshold value for determining whether the touch panel is on or off is lower than the determination threshold value for bare hands. Set to improve the sensitivity of the touch panel,
When the measured current value or electric capacity of the touch sensor is higher than the reference value, it is determined that the touch sensor is a bare hand, and a determination threshold value for determining whether the touch panel is on or off is set as a determination threshold value for a bare hand. A touch panel device characterized by: 請求項１又は請求項２に記載のタッチパネル装置において、
前記制御手段は、
更に、
前記タッチパネルの操作時に、接触された前記タッチパネルの入力の大きさを検出すると共に、検出された入力の大きさを素手のときの判断閾値と比較し、
前記タッチパネルの入力の大きさが素手のときの判断閾値より高い場合には、素手であると判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値に設定し、
前記タッチパネルの入力の大きさが素手のときの判断閾値より低い場合には、手袋装着状態と判断し、前記タッチパネルのオン／オフを判断する判断閾値を、素手のときの判断閾値より低い判断閾値に維持することを特徴とするタッチパネル装置。 The touch panel device according to claim 1 or 2,
The control means includes
Furthermore,
When operating the touch panel, it detects the magnitude of the input of the touch panel that is touched, and compares the detected magnitude of the input with the determination threshold when bare hands,
If the input value of the touch panel is higher than the determination threshold for bare hands, it is determined to be a bare hand, and the determination threshold for determining on / off of the touch panel is set as the determination threshold for bare hands,
When the input value of the touch panel is lower than a determination threshold value for a bare hand, it is determined that a glove is worn, and the determination threshold value for determining on / off of the touch panel is a determination threshold value lower than the determination threshold value for a bare hand A touch panel device characterized in that the touch panel device is maintained. 請求項１乃至請求項３のいずれかに記載のタッチパネル装置において、
前記タッチセンサを設けたメカニカルスイッチを、少なくとも、車両のスタートキー、又は、プッシュスタートスイッチ又はドアアウターハンドルとし、
前記制御手段は、
乗車前後に初めて前記スタートキー又は前記プッシュスタートスイッチ又は前記ドアアウターハンドルが操作されたときに、前記スタートキー又は前記プッシュスタートスイッチ又は前記ドアアウターハンドルのタッチセンサの抵抗値又は電圧値又はインピーダンス又は電流値又は電気容量のいずれかを測定することを特徴とするタッチパネル装置。 The touch panel device according to any one of claims 1 to 3,
The mechanical switch provided with the touch sensor is at least a vehicle start key, or a push start switch or a door outer handle,
The control means includes
When the start key, the push start switch, or the door outer handle is operated for the first time before and after boarding, the resistance value, voltage value, impedance, or current of the touch sensor of the start key, the push start switch, or the door outer handle. Either a value or an electric capacity is measured, The touch panel apparatus characterized by the above-mentioned.
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