Touch switch module

Abstract

A touch switch module according to one embodiment comprises a panel, a touch sensor and a control unit. The panel displays a slide bar. The control unit includes a slide velocity detection unit that detects a slide velocity which is a change over time in sliding when the touch moves along the slide bar and an operation information switching unit that compares the slide velocity with a predetermined threshold, that outputs first operation information as the operation information when the slide velocity is below the threshold, and that outputs second operation information that is different from the first operation information as the operation information when the slide velocity is equal to or higher than the threshold.

Claims

1. A touch switch module comprising: a panel where a slide bar for instructing an operation of an electrical equipment is displayed; a touch sensor which is formed on the panel, and which detects a touch to the slide bar; and an electronic control unit which is connected to the touch sensor, and configured to output operation information for operating the electrical equipment on the basis of the touch, wherein the electronic control unit is further configured to: detect a slide velocity which is a change over time in sliding when the touch moves along the slide bar; compare the slide velocity with a predetermined threshold, that outputs first operation information as the operation information when the slide velocity is below the threshold, and that outputs second operation information that is different from the first operation information as the operation information when the slide velocity is equal to or higher than the threshold; change the threshold to a higher level during the sliding, in response to the slide velocity being below the threshold and the first operation information being output; and change the threshold to a lower level during the sliding, in response to the slide velocity being equal to or higher than the threshold and the second operation information being output.

2. The touch switch module according to claim 1, wherein the first operation information changes an operating condition of the electrical equipment by a first physical quantity, and the second operation information changes the operating condition of the electrical equipment by a second physical quantity larger than the first physical quantity.

3. The touch switch module according to claim 1, wherein the electrical equipment is an air-conditioning device for a vehicle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front view of an instrument panel using a touch switch module according to an embodiment;

(2) FIG. 2 is a front view of a panel of the touch switch module according to the embodiment;

(3) FIG. 3 is a block diagram illustrating the touch switch module according to the embodiment;

(4) FIG. 4 is a flowchart of a case of operating a panel, in relation to the touch switch module according to the embodiment; and

(5) FIG. 5 is a chart illustrating relationship between a notch number and a slide velocity in the case of setting hysteresis, in relation to the touch switch module according to the embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) Hereinafter, an embodiment implementing the touch switch module of the present invention will be described with reference to drawings.

(7) As illustrated in FIG. 1 and FIG. 3, an electrical equipment according to the embodiment is an air-conditioning device 9 for a vehicle, and a touch switch module 1 controls the air-conditioning device 9. As illustrated in FIG. 1, the touch switch module 1 is mounted on a lower part of the center of an instrument panel 3 extending to the left and right inside a vehicle interior. The instrument panel 3 includes a car navigation 5 and a center register 7, other than the touch switch module 1.

(8) The touch switch module 1 includes, as illustrated in FIG. 3, a panel 2. On the panel 2, as illustrated in FIG. 2, a display unit 2a is provided, and a plurality of touch pads 2b and left and right slide bars 2c and 2d are displayed.

(9) The display unit 2a is positioned at an upper part of the panel 2, and extends in a vehicle width direction. At the display unit 2a, various items indicating a setting state and a present state of the air-conditioning device 9 are displayed.

(10) The touch pads 2b are displayed in two rows at the lower part of the panel 2. The touch pads 2b have various items to be pressurized with a finger to operate the air-conditioning device 9. The individual items of the touch pads 2b correspond to the various items displayed at the display unit 2a.

(11) The slide bars 2c and 2d are positioned at the left and right of the touch pads 2b so as to be operated with a finger by a passenger at the passengers seat in addition to a driver of the vehicle as the user. By the slide bars 2c and 2d, it is possible to raise and lower a temperature of air blown into the vehicle interior by the air-conditioning device 9.

(12) The touch switch module 1 includes, as illustrated in FIG. 3, a touch sensor 11 and an ECU 15 as a control unit, in addition to the panel 2.

(13) The touch sensor 11 is provided on a back surface of the touch pads 2b and the slide bars 2c and 2d of the panel 2. As the touch sensor 11, an electrostatic capacitive sensor is adopted.

(14) The ECU 15 is connected with the touch sensor 11. In the ECU 15, a program for executing a flowchart illustrated in FIG. 4 or the like is stored. The ECU 15 includes, as illustrated in FIG. 3, a slide velocity detection unit 17 and an operation information switching unit 19. The slide velocity detection unit 17 detects a slide velocity based on a detection result by the touch sensor 11. In the operation information switching unit 19, a threshold V.sub.S is stored. The ECU 15 also includes a threshold-UP change unit 21 and a threshold-DOWN change unit 23.

(15) The user within the vehicle interior operates the air-conditioning device 9 by operating the panel 2 while looking at the various items displayed at the display unit 2a according to the temperature of the vehicle interior. When the user operates the panel 2, the ECU 15 starts the flowchart illustrated in FIG. 4.

(16) In step S1, it is determined whether the user performs a slide. In the present embodiment, the slide means an action that the user touches the slide bar 2c or 2d with a finger and drags the panel along the slide bar 2c or 2d. If it is determined that the user performs a slide, a determination result is YES and processing advances to step S2. In step S2, as initial setting, a notch number is converted to an absolute value. Note that the notch number is a resolution of one slide. The notch number corresponds to the operation information.

(17) In following step S3, the touch sensor 11 detects a position of the finger of the user along the slide bar 2c or 2d. Specifically, the touch sensor 11 detects the position at which the user touches the slide bar 2c or 2d with the finger to the position after the user shifts the finger at every control unit time. The touch sensor 11 calculates a slide distance. Furthermore, the touch sensor 11 detects a direction of dragging, i.e., whether the user drags the panel from up to down or down to up.

(18) In following step S4, the slide velocity detection unit 17 of the ECU 15 illustrated in FIG. 3 detects a slide velocity V.sub.X. Specifically, the slide velocity detection unit 17 calculates a difference between the time of detecting the position when the user touches the slide bar 2c or 2d with finger and the time of detecting the position after the user shifts the finger as elapsed time. The slide velocity detection unit 17 then detects the slide velocity V.sub.X from the slide distance and the elapsed time.

(19) The ECU 15 determines whether the slide velocity V.sub.X is equal to or higher than a threshold V.sub.S in step S5 illustrated in FIG. 4. In step S5, when the slide velocity V.sub.X is below the threshold V.sub.S, a determination result is NO and the processing advances to step S6.

(20) In step S6, the operation information switching unit 19 illustrated in FIG. 3 generates a notch number N.sub.1 illustrated in FIG. 5. The notch number N.sub.1 corresponds to the first operation information. A value obtained by multiplying a change temperature by the notch number N.sub.1 corresponds to a first physical quantity.

(21) As illustrated in FIG. 4, in step S5, if the slide velocity V.sub.X is equal to or higher than the threshold V.sub.S, a determination result is YES and the processing advances to step S7.

(22) In step S7, the operation information switching unit 19 illustrated in FIG. 3 generates a notch number N.sub.2 illustrated in FIG. 5. The notch number N.sub.2 corresponds to the second operation information. A value obtained by multiplying the change temperature by the notch number N.sub.2 corresponds to a second physical quantity.

(23) In following step S8, from the direction of the slide detected in step S3, a sign is determined to be negative if the user drags the slide bar 2c or 2d from up to down and be positive if the user drags the slide bar 2c or 2d from down to up. For instance, if the user drags the slide bar 2c or 2d from up to down, the temperature of the air blown from the air-conditioning device 9 is lowered by the temperature corresponding to the first or second physical quantity. Furthermore, if the user drags the slide bar 2c or 2d from up to down, the temperature of the air blown from the air-conditioning device 9 is raised by the temperature corresponding to the first or second physical quantity.

(24) For the slide, in step S9, the notch number N.sub.1 or the notch number N.sub.2 generated in step S6 or step S7 is output to the air-conditioning device 9. When the notch number N.sub.1 is output to the air-conditioning device 9, the temperature of the air blown from the air-conditioning device 9 changes by the temperature corresponding to the first physical quantity. If the notch number N.sub.2 is output to the air-conditioning device 9, the temperature of the air blown from the air-conditioning device 9 changes by the temperature corresponding to the second physical quantity. A condition of the air-conditioning device 9 for achieving temperature change of the air blown from the air-conditioning device 9 corresponds to an operating condition.

(25) If the notch number N.sub.1 is generated by the slide, determination result is YES in step S10, and the processing advances to step S11. In step S11, a threshold-UP change unit 21 illustrated in FIG. 3 changes the threshold V.sub.S to a higher level threshold V.sub.SU. The processing then returns to step S1 illustrated in FIG. 4, and steps S1 to S9 are repeated for the next control unit time.

(26) If the notch number N.sub.2 is generated by the slide, a determination result is NO in step S10, and the processing advances to step S12. In step S12, a threshold-DOWN change unit 23 illustrated in FIG. 3 changes the threshold V.sub.S to a lower level threshold V.sub.SD. Then, the processing returns to step S1 illustrated in FIG. 4, and steps S1 to S9 are repeated. Also, for the threshold V.sub.SD and the threshold V.sub.SU, a plurality of values can be set respectively corresponding to the slide velocity.

(27) In step S1, if it is determined that the slide is not performed, tapping or long press is detected as the user's action. In the present embodiment, the tapping is an action that the user momentarily touches a specific position on the panel 2 with a finger or the like. In the present embodiment, the long press is an action that the user continues to touch the specific position on the panel 2 with a finger or the like for prescribed time. In step S1, if it is determined that the slide is not performed, the determination result is NO, and the processing advances to step S13.

(28) In step S13, the present threshold is returned to the threshold V.sub.S, and the processing returns to START. In following step S14, the operation information switching unit 19 illustrated in FIG. 3 performs different processing. Specifically, in response to the tapping, the operation information switching unit 19 changes the temperature corresponding to a prescribed notch number. Furthermore, in response to the long press, the operation information switching unit 19 changes the temperature corresponding to the other notch number. When the processing of step S14 ends, the processing returns to START.

(29) In the touch switch module 1, on the basis of the flowchart, the notch number N.sub.1 changes the operating condition of the air-conditioning device 9 by the first physical quantity, and the notch number N.sub.2 changes the operating condition of the air-conditioning device 9 by the second physical quantity. In other words, the operation information switching unit 19 changes the operating condition of the air-conditioning device 9 slightly or greatly depending on the slide velocity. Therefore, the air-conditioning device 9 can be operated under a more preferable condition appropriately reflecting user's intention.

(30) Moreover, in the touch switch module 1, on the basis of the flowchart, if the notch number N.sub.1 is generated repeatedly within the prescribed time, hysteresis is made to exist between the slide velocity and the notch number N.sub.1. The hysteresis changes the threshold V.sub.S to the higher level threshold V.sub.SU. Therefore, even if the slide velocity changes in the middle of the slide, the notch number N.sub.1 tends to be generated.

(31) If the notch number N.sub.2 is repeatedly generated within the prescribed time, the hysteresis is also made to exist between the slide velocity and the notch number N.sub.2. The hysteresis changes the threshold V.sub.S to the lower level threshold V.sub.SD. Therefore, even if the slide velocity changes in the middle of the slide, the notch number N.sub.2 tends to be generated. Owing to this, when the user wants to raise or lower the temperature of the air blown from the air-conditioning device 9 quickly, the temperature can be quickly raised or lowered even if the slide velocity is slightly lowered in the middle of the slide as long as the initial slide velocity is high.

(32) Therefore even if the slide velocity varies, it is possible to stably operate the air-conditioning device 9.

(33) Thus, in the touch switch module 1, the operability of the air-conditioning device 9 for the vehicle can be more surely improved.

(34) While the present invention is described above on the basis of the embodiment, it goes without saying that the present invention is not limited to the embodiment but can be appropriately changed and applied within the scope of the object.

(35) For instance, more pieces of the operation information may be provided such as a notch number N.sub.3 and the like in addition to the notch number N.sub.1 and the notch number N.sub.2.

(36) One aspect of the present invention is available for an air-conditioning device for a vehicle, audio equipment or a navigation system.