JP2009280156A - Shift lever control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a device capable of recognize range maintenance of select operation by a single detection switch to the select operation movement in the vehicle width direction operable in a plurality of shift positions. <P>SOLUTION: In a shift lever device 10, the number of part items is reduced and the shift lever device 10 itself can be miniaturized in a structure by using the same operation (the select operation operable in a [P'-P] position and a [D-3] position) in common by a single select operation detection switch 44. While, as a failure caused by using the select operation detection switch 44 in common, since the fact of being a [P] position in key lock control is discriminated by the logical product (an AND circuit 76) of the select operation detection switch 44 and a GND lead-in NSS (PN) signal generated based on a second circuit 82 of an existing shift lever switch 46, the failure in control can also be eliminated without newly arranging a complicated circuit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a shift lever control device provided with a control unit for controlling whether or not an operation related to a shift position of a shift lever is possible.

  In the gate type shift lever device (basic ranges: P, R, N, D), movement in the vehicle front-rear direction when a shift is changed is detected by a detection switch connected to the control unit. For this reason, the control unit can discriminate each range position of the basic ranges P, R, N, and D.

  Here, when the shift position is in the D range, the engine brake may be used during braking (deceleration). In this case, since it is necessary to manually shift down, it is possible to manually shift to the third speed (hereinafter referred to as “3”) by moving the shift lever in the vehicle width direction in the D range. .

  The D range or the 3 range is determined by detection of a D range detection switch that detects movement of the shift lever in the vehicle width direction in the D range. At the position of the 3rd range, the shift lever can be operated in the longitudinal direction of the vehicle, and downshifting (shifting up) from 3rd speed ← → 2nd speed →→ 1st speed is possible.

  Based on the detection result of the D range detection switch, after the control unit detects that the position is in the 3 range, the shift lever moves in the vehicle front-rear direction to 2nd speed or 1st speed (shift up). It is recognized that

  By the way, in the vehicle, the shift position when the ignition key is removed from the key cylinder is set to the P range only (excitation control of the key solenoid). For this reason, a P range detection switch for detecting that the shift lever is in the P range is provided.

  That is, the P range detection switch for detecting the P range position and the D range detection switch for detecting the D range position are separately provided, and the movement in the same vehicle width direction is performed. However, the movement at the P range position and the movement at the D range position are distinguished.

  However, since the P range detection switch and the D range detection switch are provided as separate switches regardless of the same shift lever movement (in the vehicle width direction), the number of parts of the shift lever device itself is large. In addition, the external shape becomes large.

  For this reason, if the P range detection switch and the D range detection switch are used in common, it is impossible to distinguish between the P range and the D range, so that the excitation control of the key solenoid cannot be performed.

  Here, as a related technique, when the shift lever enters the D range or the L range, a shift signal can be appropriately sent to the AT device, and when the shift lever enters the P range and the predetermined condition is met, the shift is performed. An apparatus capable of releasing the lock solenoid has been proposed (see Patent Document 1).

  This patent document 1 is a technique specialized in shift lock, and does not mention the distinction between the P range and the D range.

  In addition, if the technique of patent document 1 is applied, it is possible to use a single sensor that detects movement in the vehicle width direction, but the NSS signal described in this patent document 1 has an ignition on state. Is the condition (ignition energization signal).

For this reason, in the ignition-off state, the NSS signal of Patent Document 1 does not function, and it is not possible to control whether or not the operations related to all the shift lever positions are possible, and the range of use is limited. . For example, it is not suitable for a key lock signal (a signal used for a mechanism for locking the key so that it does not come out of the key cylinder except when the ignition is off and the shift position is in the P range).
JP 2002-172950 A

  In consideration of the above-mentioned fact, the present invention uses a shift lever switch that detects the shift position of an existing shift lever, and performs a single detection for a select operation movement in the vehicle width direction that can be operated at a plurality of shift positions. It is an object to obtain a shift lever device that can recognize the range maintenance of the select operation with a switch and can reduce the size of the device.

  The present invention provides a first circuit in which the ignition key is turned on and the contact point to which the ignition power is supplied is switched for each shift position in accordance with the shift operation of the shift lever, and the shift position of the shift lever is in the P range and N Provided in a control unit for controlling whether or not an operation related to the shift position of the shift lever is provided, and a second circuit in which a contact between the contacts is closed and grounded when in the range. And the shift position of the shift lever is P using a PN ground lead-in wire connected to a contact point on the side grounded only when the one end of the second circuit of the shift lever switch is closed. A P-N signal output means for outputting a P-N signal indicating whether or not a range or an N range, and a P range and a D range of the shift lever A single select operation detection switch that detects a select operation that can be operated in each direction and moves the shift lever in a direction different from a normal shift operation direction; a detection result of the PN signal output means; And determining means for determining whether the select operation detected by the select operation detection switch is the P range or the D range based on a logical product with the detection result of the select operation detection switch.

  According to the present invention, with a single select operation detection switch, the shift lever can be moved in a direction different from the normal shift operation direction, which can be operated when the shift lever is in the P range and in the D range. To detect. In other words, it is unknown whether the current shift position is in the P range or the D range.

  Therefore, when the shift operation of the shift lever is detected by the select operation detection switch, a PN signal is generated using the second circuit of the shift lever switch to determine the current shift position.

  That is, the select operation detected by the select operation detection switch based on the logical product of the detection result by the PN signal output means and the detection result by the select operation detection switch is the P range or the D range. Is determined (discriminating means).

  Since the PN signal is connected to the contact on the side grounded only when the second circuit of the shift lever switch is closed, the PN signal can be generated even when the ignition power is off. In order to determine whether the contact of the second circuit is opened or closed, for example, power may be taken from an accessory power line. In addition, since a large amount of electric power is not required, the power may be taken from a line that is always energized such as being supplied to a time memory function of the vehicle or a position memory function for preventing a power window from being caught.

  In the present invention, the second circuit of the shift lever switch may be an NSS (neutral starter switch) used for starter operation control for controlling the starter operation.

  The second circuit of the shift lever switch is an NSS that has been conventionally generated to determine whether or not the starter can be operated. In this second circuit, the ground is established when the contact is closed regardless of the ignition power source. Grounded. By using this second circuit at the time of generating the PN signal, it is possible to expand the control range for controlling whether or not the operation related to the shift position of the shift lever can be made, regardless of whether the ignition power supply is turned on or off. it can.

  In the present invention, the determination result of the determination means may be applied to excitation control of a key solenoid that operates so that the ignition key can be removed from the key cylinder only when the shift position is in the P range.

  The result of the discrimination means can be applied to the excitation control of the key solenoid.

  That is, there is an excitation control of the key solenoid as a state operable only in the P range. The key solenoid is excited (or de-energized) only when the shift position is in the P range, and is de-energized (or excited) at other shift positions. Thereby, the ignition key can be removed from the key cylinder only in the P range.

  As described above, the present invention uses a shift lever switch that detects the shift position of an existing shift lever, and uses a single detection switch for a select operation movement in the vehicle width direction that can be operated at a plurality of shift positions. Therefore, it is possible to recognize the maintenance of the range of the selection operation, and it is possible to reduce the size of the apparatus.

  FIG. 1A shows the appearance of shift lever device 10 according to the present embodiment. The shift lever device 10 is provided in a center cluster, a center console, or the like in a vehicle, and a guide plate 12 is attached to the upper surface thereof.

  As shown in FIG. 1B, a gate-type shift groove 14 is formed in the guide plate 12, and the lever rod 16 of the shift lever device 10 passes therethrough.

  The shift groove 14 guides the operation (shift operation) of the lever rod 16.

  The guide plate 12 is labeled “P”, “R”, “N”, “D-3”, “2”, “L” in the vicinity of the shift groove 14 from the front to the rear of the vehicle. A character plate 18 is affixed to indicate the shift position of the lever rod 16. The characters shown in FIG. 1B are not actually indexed, but show the relationship between the position of the lever rod 16 (character position) in the shift groove 14 and the shift position.

  In the present embodiment, “P”, “R”, “N”, and “D” are set as basic shift positions of the shift lever 14. When the shift position is the “D” position, the shift lever 14 can be tilted in the select direction. The tilting operation in the select direction is the same as the initial operation from the “P” position to the “P ′” position (the final operation from the “P ′” position to the “P” position). When the shift position is selected at the “D” position, shifting to the third speed, the second speed, and the first speed (“L”) becomes possible. Each shift position can be detected by a shift lever switch 46 (see FIG. 3) that transmits the amount of movement of the shift lever assembly 22 via a control cable or the like and switches the contact based on the amount of movement of the control cable. ing.

  As shown in FIG. 2, the shift lever device 10 includes a box-shaped housing case 20 that is fastened and fixed to a vehicle body frame by bolts or the like. A shift lever assembly 22 is accommodated in the housing case 20. The shift lever assembly 22 includes the aforementioned round rod-shaped lever rod 16 and a synthetic resin rectangular support member 24 that covers and supports the lower end portion of the lever rod 16. A shift knob 26 (see FIG. 1A) is provided at the upper end of the lever rod 16.

  A columnar first shaft 28 whose axis is disposed along the vehicle width direction is disposed at the lower end of the support member 24, and a columnar second shaft whose axis is disposed along the vehicle front-rear direction. 30 is rotatably supported. The second shaft 30 is pivotally supported by a pair of leg plate portions 24 </ b> A provided at the lower end portion of the support member 24.

  The first shaft 28 is inserted into a pair of through holes 32 formed in a pair of side wall portions 20 </ b> A facing each other of the housing case 20 and is rotatably supported.

  For this reason, the shift lever assembly 22 can be operated in the shift direction (the vehicle longitudinal direction in the present embodiment) by rotation about the first shaft 28, and by rotation about the second shaft 30. The operation can be performed in the select direction (the vehicle width direction in the present embodiment) that intersects the shift direction.

  A columnar rod portion 34 projects obliquely upward from the upper end vehicle front side of the support member 18, and a compression coil spring 36 and a detent pin 38 are inserted into the cylinder of the rod portion 34. ing. The detent pin 38 is in contact with and urged by a detent groove of a detent plate (not shown) so as to give a sense of moderation to the shift operation of the shift lever assembly 22.

  Each shift position has a structure that can be electrically recognized by transmitting the amount of rotation of the support member 24 to a shift lever switch 46 (see FIG. 3) serving as detection means via a control cable (not shown). The detection result of the shift lever switch 46 is input to a shift lock control unit (hereinafter referred to as “shift lock ECU”) 40 and a starter operation control unit 58 (see FIG. 3).

  The starter operation control unit 58 has a role of controlling (control 1) whether or not the starter operation is possible. The shift lock shift lock ECU 40 controls whether or not the shift lock operation among the operations related to the shift position of the shift lever assembly 22 is controlled (control 2), and also controls whether or not the key lock operation is possible (control 3). have.

  (Control 1) The starter operation control is limited when the shift lever assembly 22 is in the “P” or “N” position when the ignition key is inserted into the key cylinder and the starter motor 56 is operated.

  (Control 2) In the shift lock operation control, when the shift lever assembly 22 is in the “P” position, the operation cannot be performed unless the brake is depressed.

  (Control 3) The key lock operation control is permitted only when the shift lever assembly 22 is in the “P” position when the ignition key is removed from the key cylinder after the engine is stopped.

  As shown in FIG. 2, the shift lock ECU 40 includes an ECU box 40 </ b> A and accommodates various electronic components including a board. A shift lock solenoid unit 42 is placed on the upper end of the ECU box 40A. The solenoid unit 42 is accommodated in the housing 42A. The housing 42A and the ECU box 40A are integrated and accommodated in the housing case 20.

  The shift lock solenoid unit 42 has a function of locking the shift lever assembly 22 so that the shift lever assembly 22 cannot be operated when the shift lever assembly 22 is in the “P” position. A select operation detection switch 44 for detecting the operation (“P ′” ← → “P”) in the select direction at the “P” position of the lever assembly 22 is attached.

  Here, in the present embodiment, the select operation detection switch 44 is also used (commonly used) as a switch that also detects the select operation between D-3 described above to reduce the number of parts.

  On the other hand, when the select operation detection switch 44 is used in common, the problem is the recognition of the current shift position. Therefore, in the present embodiment, the shift position of the shift lever assembly 22 when the single select operation detection switch 44 is operated is recognized by signal control in the shift lock ECU 40.

  FIG. 3 is a block diagram for realizing the control of the shift lock ECU 40 related to the shift position of the shift lever assembly 22 (described above (Control 1) to (Control 3)). This block diagram is a block diagram of functions executed by the shift lock ECU 40 and the like, and does not limit the hardware configuration.

  The shift lock ECU 40 is mainly provided with a shift lock control unit 50 and a key lock control unit 52.

  The shift lock control unit 50 is connected to the shift lock relay 62. The shift lock relay 62 is interposed between both terminals 66A and 66B of the shift lock circuit 66 that controls (excitation control) the shift lock solenoid 64 based on the stop lamp signal. Both terminals 66A and 66B of the lock circuit 66 are opened (opened) and closed (short-circuited).

  A select operation signal generation unit 68 is connected to the shift lock control unit 50. Based on the signal from the select operation detection switch 44, the select operation signal generation unit 68 selects the H symbol when the shift lever assembly 22 is selected in the direction of the “P” or “3” position, and the select operation in the opposite direction. When this is done, a select signal that becomes an L signal is generated.

  The select operation signal generation unit 68 sends the select operation signal to the shift lock control unit 50. As a result, the shift lock control unit 50 controls the shift lock relay 62 to close both terminals 66A and 66B when the H signal is manually applied to the shift lock relay 62, and both ends when the L signal is input. The children 66A and 66B are opened.

  The key lock control unit 52 is connected to the key lock relay 70. The key lock relay 70 is interposed between both terminals 74A and 74B of the key lock circuit 74 for controlling (excitation control) the key lock solenoid 72 based on the key lock signal, and the key lock signal from the key lock control unit 52. Based on the above, both terminals 74A and 74B of the key lock circuit 74 are opened (opened) and closed (short-circuited).

  The starter control unit 58 is connected to the starter relay 54. In the starter relay 54, a starter signal is input to one end of the primary side coil 54A. The other end of the primary coil 54A is connected to one contact 82A of the second circuit 82B among the first circuit 80 and the second circuit 82 constituting the shift lever switch 46. The other contact 82B of the second circuit 82 is grounded.

  An IG power line 57 is connected to one end of the secondary side switch 54B of the starter relay 54. The other end of the secondary switch 54B is connected to one terminal of the starter motor 56. The other terminal of the starter motor 56 is grounded. Here, when the starter signal is input, the secondary side switch 54B is closed and the starter motor 56 is driven.

(Configuration of shift lever switch 46)
The shift lever switch 46 includes five arc-shaped contact arrangement portions 84 on a substantially 90 ° fan-shaped surface. Further, the range of about 90 ° is divided into six, and from the vertical axis side in FIG. 3, the ranges are P-P ′ range, R range, N range, D-3 range, 2 range, and L range. Yes.

  The outermost periphery is provided with an R range contact, a D-3 range contact, and an L range contact (see the thick broken arc line in FIG. 3).

  The second circumference from the outermost circumference is a common terminal 80A of the first circuit 80 (see the continuous thick arc line in FIG. 3), and is connected to the ignition power line 86.

  A P-P 'range contact, an N range contact, and a 2 range contact are provided on the third circumference from the outermost circumference (see the broken thick arc line in FIG. 3).

  Terminals corresponding to the respective contacts in the first circuit 80 are connected to the IG lead-in NSS signal generator 88.

  The IG pull-in NSS signal generation unit 88 generates a shift position determination signal based on each shift position, and is sent out by, for example, a shift position indicator display control unit (not shown).

  On the other hand, the innermost circumference and the next circumference constitute a second circuit 82, and contacts are provided in the PP ′ range region and the N range region, respectively (discontinuous thick arc lines in FIG. 3). reference). In the second circuit 82, the contacts on the same arc that are interrupted are short-circuited.

  The contact of the next circumference (one contact 82A) of the innermost circumference in the second circuit 82 is connected to one end of the primary side coil 54A of the starter relay 54 as described above. The innermost contact (the other contact 82B) is grounded.

  One end of the moving contact 90 is pivotally supported on a substantially 90 ° sector (circular arc center) of the shift lever switch 46. The moving contact 90 is provided with a contact piece that passes between the contacts having different arc radii in a state independent of the first circuit 80 and the second circuit 82, and according to the operation of the shift lever. The contact between the first circuit 80 and the second circuit 82 can be switched by rotating around the center of the fan shape.

  By the way, when the key lock control unit 52 uses the key lock relay 70 to close both terminals 74A and 74B of the key lock circuit 74 (release the key lock), the shift lever assembly 22 is in the “P” position. Only.

  Conventionally, the fact that the shift lever assembly 22 is in the “P” position is easily in the “P” position because there is a select operation detection switch dedicated to the “P” position in addition to the shift lever switch 46. In the present embodiment, it is possible to recognize that the selection operation is not performed at the position (“P ′” position) that can move in the “R” direction. In addition, a single selection operation detection switch 46 is provided, and this selection operation detection switch 46 is also used for the selection operation detection at the “P′-P” position and the “D-3” position, so that the key lock time is sure. Can not be recognized.

  Therefore, in the present embodiment, the key lock timing is recognized by using the GND pull-in NSS signal (P, N discrimination signal) generated by the shift lock ECU 40 based on the second circuit 82 of the existing shift lever switch 46. I tried to do it.

  The GND pull-in NSS signal is generated by the GND pull-in NSS signal generation unit 94 of the shift lock ECU 40, and the signal line is sent to the key lock control unit 52.

  FIG. 6 is a circuit diagram showing an example of the configuration of the GND pull-in NSS signal generation unit 94.

  The GND lead-in NSS signal generator 94 is connected to a lead-in wire 96 branched from a line connecting one contact in the second circuit 82 of the shift lever switch 46 and the primary coil 54A of the starter relay 54. Yes.

  The lead-in wire 96 is connected to the cathode side of the diode 98. The anode side of the diode 98 is connected to the base of the pnp transistor 102 via the resistor 100. An ACC power line 104 is connected to the emitter of the pnp transistor 102. Note that the emitter and base of the pnp transistor 102 are connected via a resistor 106. Further, the collector of the pnp transistor 102 is grounded via a resistor 108.

  With the above configuration, when the contact of the second circuit 80 of the shift lever switch 46 (one contact 82A and the other contact 82B) is open, the pnp transistor 102 is off and current flows between the emitter and collector. Absent. On the other hand, when the second circuit 82 of the shift lever switch 46 is closed, the pnp transistor 102 is turned on, and a current flows between the emitter and the collector.

  One end of the branch line 110 is connected between the emitter of the pnp transistor 102 and the resistor 108. The other end of the branch line 110 is wired to the key lock control unit 52. From the branch line 110, an inverted signal that is inverted when the shift position is the P position or the N position and when the shift position is other than that is output.

  FIG. 4 is a circuit (logic circuit) showing an example of a detailed configuration of the key lock control unit 52 shown in FIG.

  The key lock control unit 52 includes an AND (logical product) circuit 76 and an npn transistor 78. One input terminal 76A of the AND circuit 76 receives a GND pull-in NSS signal output from the GND pull-in NSS signal generation unit 94 (hereinafter sometimes simply referred to as “NSS signal”), and the other input terminal 76A. In 76B, a select operation signal is manually operated.

  A truth table based on these two input signals is shown in FIG. According to this truth table, it can be seen that when both signals are H signals, the output terminal 76C of the AND circuit 76 is an H signal, and the other signals are L signals.

  FIG. 5B is a correlation diagram showing the relationship between the shift position of the shift lever assembly 22, the NSS signal input to the input terminal 76A of the AND circuit 76, and the select operation signal input to the input terminal 76B.

  As shown in FIG. 5B, when both signals become H signals, that is, when the H signal is output from the output end 76C, the shift lever assembly 22 is in the “P” position (“R” position direction). It is understood that this is not the “P ′” position that can be moved to).

  As shown in FIG. 4, the output terminal 76 </ b> C of the AND circuit 76 is connected to the base of the npn transistor 78.

  The collector of the npn transistor 78 is connected to a power source (10V), and the emitter is connected to one end of the primary side coil 70 </ b> A of the key lock relay 70. The other end of the primary side coil 70A is grounded.

  A key lock signal is input to one end of the secondary side switch 70 </ b> B of the key lock relay 70, and the other end is connected to one end of the key lock solenoid 72. The other end of the key lock solenoid 72 is grounded.

  That is, in the key lock control unit 52, when the npn transistor 78 is turned on (H signal is input to the base), a current flows through the primary side coil 70A of the key lock relay 70, and the secondary side switch 70B is closed.

  The operation of the present embodiment will be described below.

  The shift lock ECU 40 controls whether or not an operation related to the shift position of the shift lever assembly 22 is possible.

(Control 1) Starter Operation Control The second circuit 82 of the shift lever switch 46 is closed between the contacts when the shift lever assembly 22 is in the “N” or “P” position, and is opened otherwise.

  In the starter relay, when the second circuit 82 of the shift lever switch 46 is closed, a current flows through the primary coil 54A of the starter relay 54, and the secondary switch 54B can be turned on. Thus, when the starter signal is sent to the starter circuit 58, the starter motor 56 can be driven.

  On the other hand, when the second circuit 82 of the shift lever switch 46 is opened, no current flows through the primary side coil 54A, so the secondary side switch 54B is turned off. Thereby, even if the starter signal is sent to the starter circuit 58, the starter motor 56 cannot be driven.

  That is, it is possible to control whether the starter can operate based on the shift position (GND pull-in NSS symbol).

(Control 2) Shift operation control In the select operation signal generation unit 68, based on the signal from the select operation detection switch 44, when the shift lever assembly 22 is in the “PP ′” or “D 13” position, A select operation signal is generated that becomes an H (high level) symbol when it becomes “P” or “3”, and an L (low level) signal otherwise.

  The select operation signal generation unit 68 sends the generated select operation signal (H or L) to the shift lock control unit 50.

  The shift lock control unit 50 controls the shift lock relay 62 to close both terminals 66A and 66B when the input select operation signal is an H signal. Thus, when the stop lamp signal is sent to the shift lock circuit 66, the shift lock by the shift lock solenoid 64 can be released.

  On the other hand, the shift lock control unit 50 controls the shift lock relay 62 to open both terminals 66A and 66B when the input select operation signal is an L signal. Thereby, when the stop lamp signal is sent to the shift lock circuit 66, the shift lock by the shift lock solenoid 64 cannot be released.

  In other words, whether or not the shift lock operation is possible can be controlled based on the select operation position (select operation signal).

(Control 3) Key lock operation control The structure of the shift lever device 10 of the present embodiment is characterized by a structure in which a single select operation detection switch 44 is provided. Since the position and the selection operation detection at the “D-3” position are combined, the key lock time cannot be reliably recognized.

  Therefore, in the present embodiment, the key lock time is recognized by using the GND pull-in NSS signal generated by the second circuit 82 of the shift lever switch 46 used for the existing starter relay. .

  A lead-in wire 96 connected between one contact 82A in the second circuit 82 of the shift lever 46 and the primary coil 54A of the starter relay 54 is a pnp transistor that is a main component of the GND lead-in NSS signal generator 94. The base of 102 is connected through a diode 98 and a resistor 100. Therefore, when the second circuit of the shift lever switch 46 is in the open state, the pnp transistor 102 is in the off state, and the GND lead-in NSS signal output from the branch line 110 is a signal whose shift position is other than P and N. (For example, L signal).

  On the other hand, when the second circuit 82 of the shift lever switch 46 is in the closed state, the pnp transistor 102 is turned on, and the GND lead-in NSS signal output from the branch line 96 is a signal with shift positions P and N ( For example, H signal).

  The binary GND pull-in NSS signal output from the branch line 96 is input to the input terminal 76A of the AND circuit 76 (see FIG. 4) of the key lock control unit 52.

  As can be seen from the correlation diagram (see FIG. 5B) showing the relationship between the GND pull-in NSS signal input to the input terminal 76A of the AND circuit 76 and the select operation signal input to the input terminal 76B. When the input signals at both input terminals 76A and 76B of the circuit 76 are H signals, the shift lever assembly 22 is in the “P” position (not the “P ′” position movable in the “R” position direction). I understand.

  As shown in FIG. 4, at this time, the H signal is output from the output terminal 76 </ b> C of the AND circuit 76 and input to the base of the npn transistor 78. As a result, the emitter-collector is turned on, the primary coil 70A of the key lock relay 70 is energized, and the secondary switch 70B is opened (ON).

  As a result, when a key lock signal is received by the key lock circuit 74, the key lock solenoid 72 can be controlled to remove the key.

  As described above, in the present embodiment, the same operation (select operation that can be performed at the “P′-P” position and the “D-3” position) in the shift lever device 10 is detected as a single select operation. By sharing the switch 44, the number of parts can be reduced and the shift lever device 10 itself can be reduced in size. On the other hand, as a malfunction due to the combined use of the select operation detection switch 44, the logical product of the select operation detection switch 44 and the existing NSS (P, N) signal indicates that the position is “P” at the time of key lock control. Since the determination is made by the (AND circuit 76), it is possible to eliminate control problems without newly providing a complicated circuit.

  In the present embodiment, the GND pull-in NSS signal input to the input terminal 76A of the AND circuit 76 is the H signal when the shift lever assembly 22 is in the “P” position or the “N” position, and is input to the human power terminal 76B. The selection operation to be performed is the H signal at the “P” position or the “3” position, but when the signal is inverted for other control, the input terminal 76A and / or the input terminal of the AND circuit 76 An inversion circuit may be provided at 76B.

  In the present embodiment, the AND circuit 76 is provided in the key lock control unit 52. As a result, the position of the shift lever assembly 22 is “P” based on two types of signals (NSS signal and select operation signal). It is only necessary to know the position (not the “P ′” position).

  Furthermore, in this embodiment, the shift lock ECU 40 and the relays to be controlled are configured separately, but a configuration in which energization to all the control objects is managed and controlled within the shift lock ECU 40 may be adopted.

  In the present embodiment, the select operation detection switch 44 is set to the position “D-3” in addition to the “P” position, but is not limited to this “D-3” position. It may be a “DM” position or a “DS” position. The “D-3” car is an automatic transaxle car, the “DM” car is a sports sequential shiftmatic car equipped with a trunk axle, and the “D1S” car is not equipped with a sports sequential shiftmatic car equipped with an automatic transaxle. It is a car.

It is the shift lever apparatus which concerns on this Embodiment, (A) is a perspective view which shows an external appearance, (B) is a front view of the shape of a shift groove | channel. It is a disassembled perspective view which shows the principal part of the shift lever apparatus of this Embodiment. It is the schematic of the shift lever control unit (ECU) mounted in the shift lever apparatus of this Embodiment. It is a circuit diagram which shows an example of the control system which mainly made the key lock control part. The truth table of the AND circuit of the key lock control unit, (B) is a correlation diagram showing the relationship between the shift position of the shift lever, the NSS signal and the select operation signal. It is a circuit block diagram of the GND drawing NSS signal generation part which concerns on this Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shift lever apparatus 12 Guide plate 14 Shift groove 16 Lever rod 18 Character plate 20 Housing case 20A Side wall part 22 Shift lever assembly 24 Support member 24A Leg board part 26 Shift knob 28 1st shaft 30 2nd shaft 32 Through-hole 34 Rod part 36 Compression Coil spring 38 Detent pin 40 Shift lock ECU
40A ECU box 42 Solenoid unit 42A Case 44 Select operation detection switch 46 Shift lever switch 50 Shift lock control unit 52 Key lock control unit (discriminating means)
54 Starter Relay 54A Primary Coil 54B Secondary Switch 56 Starter Motor 57 IG Power Line 58 Starter Control Unit 62 Shift Lock Relay 64 Shift Lock Solenoid 66 Shift Lock Circuit 68 Select Operation Signal Generation Unit 70 Key Lock Relay 72 Key Lock Solenoid 74 Key lock circuit 76 AND circuit (discriminating means)
78 npn transistor (discriminating means)
80 First Circuit 80A Common Terminal 82 Second Circuit 82A One Contact 82B Other Contact 84 Contact Arrangement Unit 86 Ignition Power Line 88 IG Intake NSS Signal Generation Unit 90 Moving Contact 94 GND Intake NSS Signal Generation Unit (PN Signal output means)
96 Lead-in line 98 Diode 100 Resistor 102 Pnp transistor 104 ACC power supply line 106 Resistor 108 Resistor 110 Branch line

Claims (3)

When the ignition key is on and the first circuit that switches the contact point to which the ignition power is supplied for each shift position according to the shift operation of the shift lever, and the shift position of the shift lever are in the P range and N range And a second circuit that is closed between the contacts and grounded, and a shift lever switch comprising:
Provided in a control unit for controlling whether or not the operation relating to the shift position of the shift lever is performed, and one end of the shift lever switch is connected to a contact point on the side grounded only when the shift lever switch is closed. PN signal output means for outputting a PN signal indicating whether or not the shift position of the shift lever is in the P range or the N range, using the PN ground lead-in wire,
A single select operation detection switch that is operable in each of the P range and D range of the shift lever and detects a select operation of moving the shift lever in a direction different from a normal shift operation direction;
Whether the select operation detected by the select operation detection switch based on the logical product of the detection result by the PN signal output means and the detection result by the select operation detection switch is the P range or the D range. Discriminating means for discriminating;
A shift lever control device.   2. The shift lever control device according to claim 1, wherein the second circuit of the shift lever switch is an NSS (neutral starter switch) used for starter operation control for controlling the starter operation.   The shift lever according to claim 1 or 2, wherein the discrimination result of the discrimination means is applied to excitation control of a key solenoid that operates so that the ignition key can be removed from the key cylinder only when the shift position is in the P range. Control device.

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