JP2005083141A - Power window controller for car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power window controller for a car capable of quickening the open-close operation of a glass member, having necessary sufficient safety, durability (deterioration properties with time) and workability. <P>SOLUTION: The power window controller for the car has a DC motor device 110 for opening and closing the car-window glass member and a current control means 120 controlling a current flowing through the motor device 110. The current control means 120 has an open-close end band PWM control means 120 PWM-controlling the current flowing through the motor device 110 when the car-window glass member is positioned at either place of a band near to the place of a totally closing or the band near to the place of a totally opening. The means 120 further has a current constant control means 120 keeping the current flowing through the motor device 110 constant when the car-window glass member is positioned at the place of the band of the intermediate place of an opening and a closing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle power window control device.

  As is well known, a vehicle such as an automobile is provided with a power window mechanism (that is, a mechanism that automatically opens and closes a window glass member in accordance with a predetermined switch operation by a passenger). Various inventions have been devised for devices that control the power window mechanism (power window control devices) (see Patent Documents 1 and 2).

Each of these power window control devices of the prior art has a mechanism for detecting pinching, and when pinching is detected, the vehicle window glass member is reversed to improve safety.
JP 7-139259 A JP-A-7-158345

  Here, for improvement of comfort etc. (specific examples are when it suddenly rains while the car window glass member is opened, or when it is desired to prevent the inflow of exhaust gas from the vehicle traveling forward etc. Furthermore, there is a demand for opening and closing the window glass member quickly. However, none of the power window control devices of the prior art has the technical idea (purpose) of speeding up the opening and closing of the car window glass member, and there is a problem that such a request cannot be achieved. .

  Accordingly, the present invention has been devised, and the present invention can speed up the opening and closing operation of the glass member while ensuring necessary and sufficient safety, durability (aging resistance) and operability. An object of the present invention is to provide a vehicle power window control device.

(Claim 1)
In order to achieve this object, a vehicle power window control device according to claim 1 comprises a DC motor device for opening and closing a window glass member, and a current control means for controlling a current flowing through the DC motor device. Further, the current control means is an open / close that performs PWM control (pulse control) on the current flowing through the DC motor device when the vehicle window glass member is in either the fully closed position vicinity band or the fully open position vicinity band. End band PWM control means, and current constant control means for making constant the current flowing through the DC motor device when the vehicle window glass member is in the position of the open / close intermediate position band.
(Claim 2)
The power window control device for a vehicle according to claim 2, further comprising: a DC motor device for opening and closing the window glass member; and current control means for controlling a current flowing through the DC motor device; Includes a PWM control means at the time of start for performing PWM control of a current flowing through the DC motor device for a predetermined time or during a predetermined rotation from the start of the start of the DC motor device regardless of the opening / closing position of the car window glass member. It is.
(Claim 3)
The vehicle power window control device according to claim 3 is the vehicle power window control device according to claim 1, wherein the current control means is a predetermined time from the start of the DC motor device regardless of the opening / closing position of the vehicle window glass member. In the meantime, it is provided with a start time PWM control means for performing PWM control of the current flowing through the DC motor device.
(Claim 4)
The vehicle power window control device according to claim 4 is the vehicle power window control device according to any one of claims 1 to 3, wherein the current control means includes a current detection sensor and a semiconductor switching element. And is configured to perform PWM control by repeatedly switching the semiconductor switching element between an on state and an off state.

(Claim 1)
According to the power window control device for a vehicle according to claim 1, when the vehicle window glass member is in either the fully closed position vicinity band or the fully open position vicinity band by the open / close end band PWM control means, the direct current motor apparatus. The current flowing through the DC motor device is PWM-controlled, and the current flowing through the DC motor device is constant when the vehicle window glass member is in the open / close intermediate position zone by the constant current control means. The rated specifications and the like can improve the average opening / closing speed of the window glass member, and can secure safety and durability.
(Claim 2)
According to the power window control device for a vehicle according to claim 2, the direct current motor is controlled by the start time PWM control means for a predetermined time or a predetermined rotation from the start of the start of the direct current motor device regardless of the opening / closing position of the window glass member. Since the current flowing through the device is PWM-controlled, there is an effect that it is possible to prevent the vehicle from starting at a rapid speed even when the car window glass member opens and closes due to a switch operation or the like by the rider.
(Claim 3)
According to the vehicle power window control device of the third aspect, in addition to the effect exhibited by the vehicle power window control device according to the first aspect, the same effect as the vehicle power window control device according to the second aspect is exhibited.
(Claim 4)
According to the vehicle power window control device described in claim 4, in addition to the effect of the vehicle power window control device according to any one of claims 1 to 3, the current control means includes a current detection sensor and a semiconductor switching element. It is composed of an intelligent power switch device, and is configured to perform PWM control by repeatedly switching on and off states of the semiconductor switching element. Therefore, repeated on / off switching to execute PWM control There is an effect that durability (against deterioration with time) can be secured.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Of course, since the following examples are only preferred examples of the present invention, the technical scope of the present invention is not limited to the following examples.

  FIG. 1 is a schematic configuration diagram of a vehicle power window control device (hereinafter simply referred to as “power window control device”) 100 according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a vehicle 1000 in which the power window control device 100 is provided. As shown in FIG. 1, the power window control device 100 includes a wind motor device 110, a motor rotation control device 120, a power supply line 130, and a car window glass position detection sensor 140.

  The wind motor device 110 drives the window glass member 510 to open and close (lift), and in order to open and close the window glass member 510 at a high speed (to shorten the opening and closing time), a large capacity rated DC motor is used. It is configured. Of course, the reduction ratio of a speed reducer (not shown) connected to the wind motor device 110 may be reduced instead of setting the wind motor device 110 to a large capacity rated specification. However, since the torque is reduced, it is preferable that the wind motor device 110 has a large capacity rating specification.

  The vehicle window glass position detection sensor 140 is for detecting the position of the vehicle window glass 510, and is configured by an encoder connected to the wind motor device 110, for example. Of course, a method other than the encoder may be used, such as a method of measuring the rotational speed of the wind motor device 110, a method of directly measuring the window glass member 510 itself, or a method of detecting the position of the opening / closing drive transmission stay.

  The motor rotation control device 120 is for controlling the rotation of the window motor device 110, and the power supply line 130 is assembled in a bridge circuit shape for supplying power to the wind motor device 110.

  In the motor rotation control device 120, the wind motor device 110 is disposed on the bridge side portion 131 of the power supply line 130, and the intelligent power switch device (hereinafter simply referred to as “convenient power switch device”) is provided on each non-bridge side portion 132 of the power supply line 130. (Referred to as “IPS”) 121, 122, 123, 124 (herein, as prior art documents relating to IPS, Japanese Patent Laid-Open No. 2002-353404 and Japanese Patent Laid-Open No. 2000-2000). 312142 publication). The motor rotation control device 120 includes an electric control system (hereinafter referred to as “ECS” for convenience) connected to the IPS 121, 122, 123, 124 and the vehicle window glass position detection sensor 140 via a signal line 126. 125).

All of the IPS, specifically, IPS ₍₁₎ 121, IPS ₍₂₎ 122, IPS ₍₃₎ 123, and IPS ₍₄₎ 124, are each a current detection sensor 121a which is a kind of current detection means, and switching The semiconductor switching element 121b is a kind of means. The current detection sensor 121a is for detecting a current value flowing through each non-bridge side portion 132 of the feeder 130, and the semiconductor switching element 121b is connected (ON) or disconnected (disconnected). For example, a semiconductor element such as a MOSFET is used. As described above, since the current detection sensor 121a and the semiconductor switching element 121b are configured by an intelligent power switch device, that is, an integrated configuration, the current detection means and the switching means are connected to the feeder line 130. The work (attachment work) disposed on each non-bridge side portion 132 can be simplified.

  The ECS 125 is for controlling (controlling) the vehicle power window control device, and includes an A / D converter, a memory, a CPU, a D / A converter, etc. (not shown). Such processing includes processing for switching the on / off state of the semiconductor switching element 121b constituting each IPS 121, 122, 123, 124 according to a predetermined trigger (specifically, opening / closing direction switching processing, opening / closing speed shifting). Processing, open / close emergency stop processing).

The opening / closing direction switching process is a process of switching the opening / closing direction of the vehicle window glass member 510 in accordance with the switch operation of the passenger. At the time of closing (raising) the window glass member 510, the semiconductor switching element 121b of IPS ₍₁₎ and IPS ₍₄₎ is turned on and the semiconductor switching element 121b of IPS ₍₂₎ and IPS ₍₃₎ is turned off. On the other hand, when the vehicle window glass member 510 is opened (lowered), the semiconductor switching element 121b of IPS ₍₂₎ and IPS ₍₃₎ is turned on, and the semiconductor of IPS ₍₁₎ and IPS ₍₄₎ is turned on. The switching element 121b is turned off. Thereby, the raising / lowering direction of the window glass member 510 can be reversed (reversed).

In the opening / closing speed shifting process, as shown in FIG. 2, when the vehicle window glass member 510 is closed (ascended), the vehicle window glass member 510 is detected by the vehicle window glass position detection sensor 140 in the vicinity of the open end position (open end region) and the closed end. When it is detected that the position is in the vicinity of the position (closed end region), the semiconductor switching element 121b constituting the IPS ₍₁₎ and IPS ₍₄₎ is repeatedly turned on and off (that is, the wind motor device 110). IPS ₍₁₎ and IPS ₍₄₎ are configured when it is detected that the current is flowing in the open / closed intermediate position zone (between the open end position and the closed end position ₎ . The ON state of the semiconductor switching element 121b to be held is maintained.

Similarly, when the vehicle window glass member 510 is opened (lowered) and the vehicle window glass position detection sensor 140 detects that the vehicle window glass member 510 is in the vicinity of the open end position and the closed end position, the IPS _{( 2)} and IPS ₍₃₎ , the semiconductor switching element 121b is repeatedly turned on and off. On the other hand, if it is detected that the semiconductor switching element 121b is in the open / closed intermediate position zone, IPS ₍₂₎ and IPS ₍₃₎ are configured. The on state of the semiconductor switching element 121b is maintained.

  As described above, when the vehicle window glass member 510 is in the position near the open end position and the closed end position, the current flowing through the window motor device 110 is PWM-controlled. That is, it is possible to improve the opening speed of the entire vehicle window glass member 510. As a result, it is possible to improve the window opening / closing speed (shortening the opening / closing time) without impairing safety and durability. In addition, since these PWM control processes are executed by turning on and off the semiconductor switching element 121b, in other words, since the switching means is constituted by the semiconductor switching element 121b, durability against repeated switching (aging resistance) is ensured. It becomes possible to do. Also, the PWM control can be feedback controlled by detecting the current with the current detection sensor 121a. Furthermore, the switching means and the current detection means can be easily realized by configuring the switching means and the current detection means with IPS originally (essentially) provided with both the semiconductor switching element 121b and the current detection sensor 121a.

  In addition, as shown in FIG. 3, the opening / closing speed shifting process is performed when the opening / closing of the window glass member 510 is started by a rider's switch operation, regardless of the opening / closing position of the window glass member 510. PWM control is performed on the current flowing through the. Therefore, it is possible to prevent the vehicle from starting at a rapid speed even when the window glass member 510 is opened or closed in accordance with a switch operation or the like by the rider.

  In the opening / closing emergency stop process, when the current flowing through the wind motor device 110 is a large current (greater than a predetermined threshold (threshold)), it is estimated that there is an abnormality in opening / closing of the window glass member 510, and all By turning off the semiconductor switching element 121b of the IPS 121 to 124, the current flowing through the window motor device 110 is set to 0, and the opening and closing of the window glass member 510 is urgently stopped. In this case, the predetermined threshold includes a first predetermined threshold and a second predetermined threshold larger than the first predetermined threshold, and when the opening / closing speed of the car window glass member 510 is fast, When the first predetermined threshold value is adopted and the opening / closing speed of the car window glass member 510 is slow, the second predetermined threshold value is adopted. Therefore, even when the opening / closing speed of the car window glass member 510 is fast, safety can be ensured.

(Second embodiment)
Next, another embodiment (second embodiment) different from the above-described embodiment (first embodiment) will be described with reference to FIG. In describing the power window control device of the second embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals, the description thereof is omitted, and different parts are described.

The power window control device of the second embodiment basically has the same configuration as that of the power window control device 100 of the first embodiment, but the processing executed by the ECS 125d is different (of course, in the memory or the like). The stored program is also different). Specifically, in the power window control device of the second embodiment, in addition to the opening / closing speed shift process executed by the power window control device 100 of the first embodiment, the vehicle window glass member 510 has an opening / closing intermediate position band (open end position). Even when it is detected that the vehicle is in the vicinity of the closed end position and the vicinity of the closed end position, if a switch operation (operation that triggers opening or closing) is performed by the rider, IPS ₍₁₎ and IPS _{( The} semiconductor switching element 121b constituting ₄₎ is turned on and off, and the current flowing through the wind motor device 110 is PWM-controlled.

  As a result, it is possible to prevent danger from being generated by rapidly opening (closing) immediately after the opening (closing) operation.

(Third and fourth embodiments)
Next, with reference to FIG. 5 and FIG. 6, another embodiment (third and fourth embodiments) different from the above-described embodiment (first and second embodiments) will be described. In the description of the power window control apparatus of the third and fourth embodiments, the same parts as those in the above embodiment are denoted by the same reference numerals, the description thereof is omitted, and different parts are described.

  In the embodiment shown in FIG. 5 and FIG. 6, the whole is set to PWM control, and when decelerating, the duty ratio of PWM control is made small. Here, the embodiment shown in FIG. 5 corresponds to the first embodiment, and the embodiment shown in FIG. 6 corresponds to the second embodiment.

  The present invention has been described based on the embodiments. However, it goes without saying that the above embodiments can be variously improved and modified without departing from the gist of the present invention. These modifications are also included.

  For example, in this embodiment, when the vehicle window glass member 510 is in both the vicinity of the open end position and the close end position, the opening / closing speed is reduced. Even if it does not decelerate in both areas, it decelerates only when it is detected that it is in the position near the closed end position during closing (up), and it is in the open end position during opening (down). You may make it decelerate only when it detects that it exists in the position of the vicinity. This is especially true in the second embodiment. This is because in the second embodiment, the speed is reduced when the switch operation is performed, and therefore, the control is duplicated when the opening is from the fully closed state. That is, by adopting such a configuration, it is possible to realize simplification of control without impairing safety.

  To make sure that there is no doubt in the interpretation of the present invention, as in the above embodiment, the present invention is used in combination with means for urgently stopping opening and closing. Preferably means are provided. Of course, the present invention is characterized in that the opening / closing speed of the power window is changed according to the situation, and it goes without saying that such emergency stop means is not included in the technical scope of the present invention. Nor.

  The present invention includes the following inventions.

  In a vehicle power window control device comprising a DC motor device for opening and closing a window glass member, and a current control means for controlling a current flowing through the DC motor device, the current control means includes: Regardless of the open / close position, it is provided with a constant PWM control means for PWM control of the current flowing through the DC motor device, and the constant PWM control means is arranged so that the vehicle window glass member is located at the position of the fully closed position vicinity band and the fully open position vicinity band. The vehicle power window control device (A), wherein the vehicle window glass member is configured to have a duty ratio larger when the vehicle window glass member is located at an opening / closing intermediate position zone than a duty ratio in a certain case.

  According to the vehicle power window control device (A), the vehicle window glass member is moved in the vicinity of the fully closed position and the fully open position by the constant PWM control means for PWM-controlling the current flowing through the DC motor device regardless of the opening / closing position of the vehicle window glass member. Since the duty ratio in the case where the vehicle window glass member is in the position of the open / close intermediate position band is made larger than the duty ratio in the case of the position near the position band, the DC motor device is designed to have a large capacity rating, etc. The average opening / closing speed of the members can be improved, and safety and durability can be ensured.

  In the vehicle power window control device (A), the constant PWM control means is configured such that the vehicle window glass member is in the fully closed position for a predetermined time or during a predetermined rotation from the start of the DC motor device regardless of the opening / closing position of the vehicle window glass member. A vehicle power window control device (B), characterized in that the duty ratio is configured to be smaller than the duty ratio in the case of being in the position of either the vicinity band or the fully open position vicinity band.

  According to this vehicle power window control device (B), in addition to the effects exhibited by the vehicle power window control device (A), the start of the DC motor device is started by the constant PWM control means regardless of the opening / closing position of the vehicle window glass member. Since the duty ratio is made smaller than the duty ratio in the case where the vehicle window glass member is located in either the position near the fully closed position or the position near the fully open position during a predetermined time or a predetermined rotation from the time, the DC motor device is The large-capacity rating specifications can improve the average opening / closing speed of the car window glass member, and can secure safety and durability. Moreover, when the vehicle window glass member opens and closes due to a switch operation or the like by the rider, it is possible to prevent starting at a rapid speed.

1 is a basic block diagram (wiring diagram) of a vehicle power window control apparatus according to an embodiment of the present invention. It is a figure which shows the vehicle carrying the said power window apparatus for vehicles. It is a timing chart which shows ON / OFF of the semiconductor switching element by one opening-and-closing speed shift process (opening-closing end time shifting process process) performed with the said power window control apparatus. It is a timing chart which shows on-off of a semiconductor switching element by other opening-and-closing speed gearshift processing (startup gearshift processing). It is a timing chart which shows ON / OFF of the semiconductor switching element by one opening-and-closing speed shift process (opening-closing end time shifting process) performed with the said power window control apparatus. It is a timing chart which shows on-off of a semiconductor switching element by other opening-and-closing speed gearshift processing (startup gearshift processing).

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Power window control apparatus 110 for vehicles DC motor apparatus (wind motor apparatus)
120 Motor rotation control device 121 Intelligent power switch device (IPS) ₍₁₎
121a Current detection sensor 121b Semiconductor switching element 122 IPS ₍₂₎
123 IPS ₍₃₎
124 IPS ₍₄₎
125 Electric Control System (ECS)
126 Signal line 126a Operation signal transmission line 126b Current signal line 130 Feed line 131 Bridge side 132 Non-bridge side 510 Car window glass member 1000 Vehicle

Claims (4)

In a vehicle power window control device comprising a DC motor device for opening and closing a window glass member, and a current control means for controlling a current flowing through the DC motor device,
The current control means is an open / close end band PWM control means for PWM-controlling a current flowing through the DC motor device when the vehicle window glass member is in any position of a fully closed position vicinity band or a fully open position vicinity band; A vehicle power window control device comprising: a constant current control means for keeping a current flowing in the DC motor device constant when the vehicle window glass member is in a position of an opening / closing intermediate position zone. In a vehicle power window control device comprising a DC motor device for opening and closing a window glass member, and a current control means for controlling a current flowing through the DC motor device,
The current control means includes a start time PWM control means for performing PWM control of a current flowing through the DC motor apparatus for a predetermined time or a predetermined rotation from the start of the start of the DC motor apparatus regardless of the opening / closing position of the vehicle window glass member. A power window control device for a vehicle, comprising:   The current control means includes start-time PWM control means for PWM-controlling the current flowing through the DC motor device for a predetermined time from the start of the DC motor device regardless of the opening / closing position of the vehicle window glass member. The power window control device for a vehicle according to claim 1.   The current control means includes an intelligent power switch device having a current detection sensor and a semiconductor switching element, and is configured to perform PWM control by repeatedly switching the semiconductor switching element between an on state and an off state. The power window control device for a vehicle according to any one of claims 1 to 3.

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