Device for Operating Electrical or Electromechanical Entry or Access Systems on or in a Vehicle

• US 20070247275A1
• Filed: 04/05/2005
• Published: 10/25/2007
• Est. Priority Date: 04/30/2004
• Status: Active Grant

• Current Assignee: Huf Hulsbeck & Furst GmbH & Co. KG
• Original Assignee: Huf Hulsbeck & Furst GmbH & Co. KG
• Inventors: Witte, Martin, Steegmann, Bernd
• Granted Patent: US 7,446,645 B2
• Time in Patent Office: Days
• US Class Current: 340/5.200
• CPC Class Codes: B60R 25/246 characterised by the challenge triggering
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2209/65 using means for sensing the user's hand
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: H03K 17/962 Capacitive touch switches
• CPC Class Codes: H03K 2217/9401 Calibration techniques
• CPC Class Codes: H03K 2217/960705 Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe
• CPC Class Codes: H03K 2217/96078 Sensor being a wire or a strip, e.g. used in automobile door handles or bumpers

Abstract

The invention relates to a device for operating electrical or electromechanical devices (10) in a vehicle, whereby a sensor (40) is used, operating on proximity or contact. According to the invention, the device can distinguish whether operation of the sensor (40) is actually carried out by a human hand, or by erroneous objects, whereby, in an initial adjustment phase, the device records at least one set of data for each signal and stores the same in a memory, which occur at least some defined timepoints during the signal time course of the corresponding sensor (40). A set of operationally-typical valid data and/or a set of error-typical invalid data is thus obtained. During the subsequent operational phase for the device, an actual data set of analogue signals for the corresponding sensor (40) is recorded during the time course at the same defined timepoints as for the adjustment phase. Said actual data set is compared by a controller with at least one of the stored data sets. Operation of the device (10) is thus only permitted by the controller (44), when the actual data set matches the valid data set and/or is not contained within the invalid data set.

Claims

1. Arrangement for actuating electrical or electromechanical devices (10) on or in a vehicle,

with at least one sensor (40), which responds to approach or contact;

with a memory for nominal data and with a controller, which compares the incoming actual data with the nominal data and, if the comparison is successful, releases the actuation (23) of the device (10),

wherein

during a setup phase of the arrangement, at least one data set (G₁, B₁, B₂) of the signals (G_1.1-G_1.16, B_1.1-B_1.16, B_2.1-B_2.16) obtained over the course of time during the response of the sensor (40)

is recorded at a minimum of several defined times (t₁-t₁₆) and stored in memory,

namely, a set (G₁) of good data (G_1.1-G_1.16) typical of actuation and/or a set (B₁;

B₂) of bad data (B_1.1-B_1.16;

B_2.1-B_2.16) typical of errors;

in that

during the later duty phase of the arrangement, a responding sensor (40) records an actual data set of analogous signals over the course of time at the same defined times (t₁-t₁₆) as those used during the setup phase;

in that

this actual data set is compared by the controller with at least one of the stored data sets (G₁, B₁, B₂); and

in that

the controller releases (44) the actuation of the device only if the actual data set agrees with the good data set (G₁) and/or is not the content of a bad data set (B₁;

B₂).

2. Arrangement according to claim 1, wherein the memory holds a large number of good data sets (G₁).

3. Arrangement according to claim 1, wherein the memory holds a large number of bad data sets (B₁, B₂).

4. Arrangement according to claim 1, wherein, during the evaluation, the controller first checks all the sets of good data (G₁) and only then decides whether or not agreement or non-agreement with the actual data set is present.

5. Arrangement according to claim 1, wherein, during the evaluation, e controller first checks all the sets of bad data (B₁, B₂) and only then decides whether agreement or non-agreement with the actual data set is present.

6. Arrangement according to claim 1, wherein the device is a closing vice (10) for doors (12) or hatches of the vehicle;

and in that

after release (44) has occurred, the closing device (10) opens or closes the door (12) or hatch upon actuation (23).

7. Arrangement according to claim 6, wherein the closing device (10) has a handle (20), which is used to actuate (23) the closing device (23) in the operating or closing direction;

and in that

at least several components (42) of the arrangement are integrated into the handle (20).

8. Arrangement according to claim 1, wherein the device is a start-stop switch for the vehicle'"'"'s engine;

and in that

after release has occurred, the start-stop switch switches the engine from one to another of its various operating modes upon actuation.

9. Arrangement according to claim 1, wherein the sensor (40) acts on the basis of capacitance.

10. Arrangement according to claim 1, wherein the sensor is optically active.

11. Arrangement according to claim 1, wherein the sensor acts on the basis of electromagnetism or radar.

12. Arrangement according to claim 1, wherein the controller begins to release (44) the actuation (23) of the device (10) as soon as the signal (G_1.1, B_1.1, B_2.1) of the actual data set begins, but does not yet actually allow the actuation (23);

and in that

if a negative comparison is reached upon evaluation of the received actual data set, the controller cancels the release (44) of the actuation (23) and renders the actuation function inactive.

13. Arrangement according to claim 1, wherein an authorized person carries an active or passive identification transmitter (ID transmitter);

in that

the ID transmitter communicates with an identification receiver (ID receiver) in the vehicle; and

in that

if the communications between the ID transmitter and the ID receiver are successful, the actuation (23) of the device (10) is released (44).

14. Arrangement according to claim 13,

wherein the controller starts to release the actuation (23) of the device (10) as soon as the signal (G_1.1, B_1.1, B_2.1) of the actual data set begins but does not yet allow the actuation (23);

and in that

if the communications between the ID transmitter and the ID receiver are unsuccessful, the controller cancels the release (44) of the actuation (23) and renders the actuation function (23) inactive.

15. Arrangement according to claim 1, wherein the setup phase can also continue during the later use of the arrangement;

in that

the arrangement also learns during the duty phase and identifies current actual data according to the following criterion and stores at least some of them,

where incoming actual data not followed by a concrete actuation (23) of the device (10) are interpreted as bad data (B₁;

B₂),

whereas actual data are recognized as good data if an actuation (23) of the device (10) follows their reception.