JP3014698B2 - Vehicle electrical equipment control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle electrical component control device.

(Prior art) A conventional general vehicle tilt steering device has, for example, a ratchet around a fulcrum of a tilt lever.
The ratchet is normally fixed by meshing with the teeth of the gear portion on the steering pole side. On the other hand, when the lever is pushed upward, the meshing state is released and the vertical angle of the steering becomes free. The configuration was adopted, and the angle changing operation was manually performed.

However, in view of the inconvenience, recently, the engagement portion between the lever side and the steering pole side is configured to be electrically driven by a tilt motor, and the tilt angle can be freely adjusted according to the driver's body, posture, and preference. Of course, the tilt angle of the steering is automatically varied (usually tilted up) according to the opening and closing of the driver's seat side door and the de-operation of the ignition key (keyless operation).
There has been proposed even one that makes the operating posture at the time of getting on and off the vehicle easier (for example, see Japanese Patent Application Laid-Open No. 62-39363).

In the electric tilt steering apparatus employing such a configuration, the tilt-up top dead center position (stopper position... See FIG. 2) at the time of driver entry / exit is set as a retreat position by predetermined position setting means. The position is stored in a memory on the steering control unit side, and in the subsequent control, the power supply to the tilt motor is turned off based on the memory position and a control system for locking in the tilt-up state is employed. Further, for detecting the tilt-up top dead center position (stopper position), an overload detecting means for detecting an overload of the motor is used, and the steering wheel reaches the top dead center and hits the stopper and cannot be moved. This is done by detecting an increase in the load current of the tilt motor at the time. The detection of the top dead center position and the memory are performed not only when assembling a new car but also when the battery is removed for repair or the like after that because the memory value up to that point is lost. Must.

(Problems to be Solved by the Invention) By the way, if the detection of the tilt-up top dead center is performed based on the overload state of the motor due to the contact with the steering indicating the limit position of the steering as described above, for example, If an overload is detected at a position other than the stopper position due to the presence of an external obstacle, the position is confirmed as the original stopper position, that is, the tilt-up top dead center, and the memory value of the position setting means is cleared once. Unless this occurs, there is a problem that the adjustment (variable) range of the tilt angle is substantially narrowed, and it is not possible to realize a good angle of getting on and off.

(Means for Solving the Problems) The inventions of the present application have been made for the purpose of solving the above-mentioned problems, respectively, and have the following problem solving means.

(1) The invention according to claim 1 is a predetermined control object attached to a vehicle and driven and displaced within a predetermined area between one end position as a retreat position and another end position as a use position. An evacuation control means for driving and displacing the predetermined control object from the other end side use position toward the one end side evacuation position by an object and driving means driven in accordance with an occupant's will; An evacuation position storage means for storing an end position, an overload detection means for detecting an overload state of the drive means, and an overload detection means for driving the predetermined control object by the evacuation control means. When an overload state of the drive means is detected, the drive displacement of the predetermined control object in the direction of the one end side retreat position is stopped, and the stop position is stored in the retreat position storage means as the retreat position. control And a step, wherein the predetermined control object is driven and displaced by the retreat control means, and when the predetermined control object reaches the stop position stored in the retreat position storage means, the storage control means In the vehicular electrical component control device configured to stop the drive displacement of the predetermined control object, the one-side position and the other-end position of a predetermined region in which the predetermined control object is driven and displaced are determined. An area between the predetermined position and the other end position is defined as a non-storable area in which the evacuation position cannot be stored in the evacuation position storage means, and the control target is located in the non-storable area. In some cases, the storage control means does not store the stop position in the evacuation position storage means even when the overload state of the drive means is detected by the overload detection means. It is characterized by having.

(2) The present invention provides a steering wheel attached to a vehicle, which is driven and displaced within a predetermined area between a stopper position, which is a retreat position, and a return position, which is a use position, and a driver's will. Retraction control means for drivingly displacing the steering wheel from the return position toward the stopper position by a tilt motor driven in response thereto, retreat position storage means for storing the stopper position being the retreat position, and overload of the tilt motor An overload detecting means for detecting a state, and an overload state of the tilt motor is detected by the overload detecting means at the time of driving displacement of the steering wheel by the retreat control means, in the direction of the stopper position of the steering wheel. Is stopped, and the stop position is stored in the evacuation position storage means as the evacuation position. When the steering wheel is driven and displaced by the evacuation control means and reaches the stop position stored in the evacuation position storage means, the storage control means controls the steering wheel. In the vehicle electrical component control device configured to stop the drive displacement, an area between a predetermined position between a stopper position and a return position in a predetermined area where the steering wheel is drive-displaced and a return position is set. The evacuation position storage means cannot store the evacuation position in the non-storable area. When the steering wheel is in the non-storable area, the storage control means controls the tilt by the overload detection means. Even if an overload state of the motor is detected, the stop position in the evacuation position storage means is The storage of the location is not performed.

(Operation) (1) Invention of Claim 1 In other words, in the configuration of the control device for the vehicle electrical component according to the invention of Claim 1, one end side position, which is a retreat position at which a predetermined control target is driven and displaced, An area from a predetermined position within a predetermined area between the other end side position, which is a use position, and the other end side position is set as a non-storable area, and the storage control means includes, for example, the evacuation control means. In the case where the predetermined control target is driven and displaced via the driving means, even if an overload state of the driving means for driving the control target is detected by the overload detection means, When the predetermined control object is in the non-storable area, the evacuation position storage means is not made to store the stop position as the evacuation position.

Therefore, the actual movement position of the predetermined control object driven by the driving means is from the predetermined position between the one end position and the other end position, which is the maximum drive displacement range, to the other end position. When the overload detecting means detects the overload state of the driving means in the non-storable area during the period, the evacuation position storage means does not store the stop position as the evacuation position. Become like

That is, in the above configuration, the predetermined control object is driven and displaced by the driving means from the other end position, which is the normal use position, to the one end side position, which is the retreat position, and thereafter, the overload detection means Even if the overload state of the driving means is detected and the predetermined control target stops, even if it hits some obstacle and it is not an area that can be set as an appropriate retreat position, ,
The stop position is not stored by the evacuation position storage means. Therefore, the setting of the stop position as the erroneous evacuation position is never performed.

(2) Invention of Claim 2 That is, in the configuration of the vehicle electrical component control device of the invention of Claim 2, between the stopper position, which is the retreat position where the steering wheel is driven and displaced, and the return position, which is the use position. An area between a predetermined position within the predetermined area and the return position is set as a non-storable area, and the storage control means controls the drive displacement of the steering wheel via the tilt motor by the retraction control means, for example. In this case, even if the overload detecting means detects an overload state of the tilt motor that drives the steering wheel, if the steering wheel is in the non-storable area at that time, the evacuation position storage is performed. The means is not made to store the stop position as the evacuation position.

Therefore, the actual movement position of the steering wheel driven by the tilt motor is within the storage impossible area between the predetermined position between the stopper position and the return position, which is the maximum drive displacement range, and the return position. In some cases, when the overload detecting means detects the overload state of the tilt motor, the evacuation position storage means does not store the stop position as the evacuation position.

That is, in the above configuration, the steering wheel is displaced from the return position, which is the normal use position, toward the stopper position, which is the retracted position, by the tilt motor, and then the overload detection unit detects an overload of the tilt motor. Even if the state is detected and the steering wheel stops, if it hits some obstacle and is not an area that can be set as an appropriate evacuation position, the stop position by the evacuation position storage means is determined. No storage is done. Therefore, the setting of the stop position as the erroneous evacuation position is never performed.

(Effects of the Invention) As a result, according to the control apparatus for a vehicle electrical component of each invention of the present application, there is provided a vehicle electrical component control device such as a tilt type steering device which has a high accuracy of setting a retracted position and has high reliability. Will be able to

(Embodiment) FIGS. 1 to 3 show a vehicle electrical component control device according to an embodiment of the present invention.

First, FIG. 1 also shows the configuration of an electric tilt steering device, which is an electric component for a vehicle, and the configuration of a control circuit unit thereof in the present embodiment.

In the figure, reference numeral 1 denotes a steering wheel,
The steering wheel 1 has its support shaft 2 side connected to a steering pole (steering column) 4 side via a tilt angle adjusting mechanism 3.

The tilt angle adjusting mechanism 3 includes the steering wheel 1
A shaft support portion 5 for pivotally attaching the support shaft 2 and the steering pole 4 to the upper and lower sides (see arrows), a tilt motor 6 fixedly supported on the steering pole 4 side, and the tilt motor 6, a ratchet portion 7 provided on the distal end side of the drive shaft 6a, and a link portion 8 connecting the support shaft 2 on the steering wheel 1 side and the ratchet portion 7 to each other.
When the tilt motor 6 is driven, the link portion 8 is caused to bend via the ratchet portion 7, and the pivot angle θ of the steering wheel 1 is set to the position shown in FIG. It is arbitrarily adjusted in the range up to the position of theta ₃ from (lowermost end) (uppermost side stopper position).

The tilt motor 6, the rotation direction and rotation amount by the tilt angle control signals S ₁ of the steering control unit 10 as shown is adapted to be arbitrarily controlled. The steering control unit 10 has an "away control function" and a "return control function", respectively, and also has a steering position memory function by detecting an overload current of the tilt motor 6 to execute both of these control functions. It is configured.

The above-mentioned "way control" includes the tilt-up control of the steering when the driver gets off the vehicle, and is performed for the purpose of automatically tilting up the steering at a predetermined set angle so that the driver can easily get off the vehicle. Things. In addition, the above “return control”
When the driver opens the door of the vehicle and gets on the driver's seat, the steering is automatically tilted up by a predetermined set angle in the same manner as in the case of getting off, thereby facilitating the riding operation.

The above steering control unit 10
In order to perform the two controls, there are provided an overload detecting means 11 and a getting on / off state determining means 12, a position setting memory 13 for storing a tilt-up top dead center position, a tilt angle sensor 14, and the like. The above-described control is selectively executed in response to (get on or off). Said boarding state determination means
12 specifically adopts a configuration that uses a door open (not shown) by turning on a door switch (not shown) and a keyless switch that is turned off in response to removal of an ignition key (drop off detection). ing.

Next, a flowchart of FIG. 3 shows a tilt angle control operation by the steering control unit 10.

That is, first in a first step S _1, respectively determines the behavior of the current of the driver or in the non-riding state, or alternatively in the range of getting off state by elevating state determining means 12 described above.

As a result, when it is determined that the getting-off state, then the process proceeds to step S ₂ drives the tilt motor 6 described above in the tilt-up direction. As a result, the support shaft 2 of the steering wheel 1 is tilted up from θo in FIG. 2 in the θ ₃ (maximum angle) direction via the ratchet portion 7 and the link portion 8 described above.

Thereafter, further proceeds to step S _3, the overload detection unit 11 according to whether or not the load of the predetermined value or more the support shaft 2 of the tilt-up direction by driving the steering wheel 1 is applied, in other words the steering wheel 1 It is determined whether or not the support shaft 2 has become unmovable. The set top dead center θa is the actual stopper positions theta ₃ as shown in FIG. 2, is set to at least a predetermined allowable range of _one or more theta sufficient tilt-up position to the passenger in the driver.

Consequently, YES (overload) and if it is determined in step S ₄ followed proceeds to step S ₅ in terms of stopping the driving of the tilt motor 6, further該過load state the set top dead center θa zone Is determined.

As a result, the memory to the top dead center memory 13 the current tilt angle detection value θn proceeds to final step S ₆ as the set top dead center to be the memory in the case of YES in the said set dead center θa zone The subsequent tilt angle control (way control and return control) is executed with high accuracy. Therefore, as a result, the set top dead center θn is always set at a position that does not hinder the above-described way control and return control.

On the other hand, the result of the decision in step S _1, rather than getting off state, when it is determined that the riding condition, the step
Substantially step S ₂ proceeds to dead point setting operation on the riding of S ₇
It performs the same control operation as to S _6.

Further, if not the still overloaded is determined NO at the other step S ₃ (if a middle tilt up not applied disturbance load), until it reaches the top dead center θn The driving of the tilt motor 6 is continued.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a basic configuration of a vehicle electrical component control device according to an embodiment of the present invention, FIG. FIG. 3 is a flowchart showing a tilt angle memory operation of the control unit of the apparatus. DESCRIPTION OF SYMBOLS 1 ... Steering wheel 2 ... Support shaft 3 ... Tilt angle adjustment mechanism 4 ... Steering pole 5 ... Shaft support part 6 ... Tilt motor 7 ... Ratchet part 8 ... Link part 10 ... Steering control unit 11 ... … Overload detection means 12… Get on and off state judgment means 13 …… Position setting memory

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-39364 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B62D 1/18

Claims (2)

(57) [Claims] 1. A predetermined control object attached to a vehicle and driven and displaced within a predetermined area between one end side position which is a retreat position and another end side position which is a use position, and an occupant's will. Evacuation control means for driving and displacing the predetermined control object from the other end use position toward the one end retreat position by a drive means driven in accordance with the evacuation position, and evacuation storing the one end position as the evacuation position. Position storage means, an overload detection means for detecting an overload state of the drive means, and an overload state of the drive means by the overload detection means at the time of drive displacement of the predetermined control object by the evacuation control means. Storage control means for stopping the drive displacement of the predetermined control object in the direction of the one end side retreat position when detected, and storing the stop position as the retreat position in the retreat position storage means, Evacuation The predetermined control object is driven and displaced by the control means, and when the predetermined control object reaches the stop position stored in the evacuation position storage means, the storage control means causes the predetermined control object to be displaced. In the vehicular electrical component control device configured to stop the drive displacement, the predetermined control object is driven and displaced from a predetermined position between the one end side position and the other end position within a predetermined area where the predetermined control object is driven and displaced. The area up to the end position is a non-storable area in which the evacuation position cannot be stored in the evacuation position storage means. When the control object is in the non-storable area, the storage control means Wherein the stop position is not stored in the evacuation position storage means even if the overload state of the drive means is detected by the overload detection means. Electrical equipment control device. 2. A steering wheel attached to a vehicle and driven and displaced within a predetermined area between a stopper position as a retreat position and a return position as a use position, and a tilt motor driven according to a passenger's will. Evacuation control means for drivingly displacing the steering wheel from the return position in the direction of the stopper position, evacuation position storage means for storing the stopper position being the evacuation position, and overload detection for detecting an overload state of the tilt motor. Means, when an overload state of the tilt motor is detected by the overload detecting means at the time of driving displacement of the steering wheel by the retreat control means, the driving displacement of the steering wheel in the direction of the stopper position is stopped, Storage control means for storing the stop position as the evacuation position in the evacuation position storage means, When the steering wheel is driven and displaced by the evacuation control means, and when the steering wheel reaches the stop position stored in the evacuation position storage means, the drive displacement of the steering wheel is stopped by the storage control means. In the vehicular electrical component control device, the area between the predetermined position between the stopper position and the return position within the predetermined area where the steering wheel is driven and displaced and the return position is stored in the evacuation position storage means. When the steering wheel is within the non-storage area, the storage control means detects the overload state of the tilt motor by the overload detection means. Even if the stop position is not stored in the evacuation position storage means. Electrical equipment control system for a vehicle, characterized in that had Unishi.