JP2917660B2 - Vehicle shift warning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift to a speed selected by a driver's select operation, which is temporarily suspended according to driving conditions, and then changed when the driving conditions change and the suspension is released. The present invention relates to a shift warning device for a vehicle in which when a shift occurs at an unexpected timing, a two-stage warning of shift holding and shift execution is performed so that the driver can expect the shift.

[0002]

2. Description of the Related Art Conventionally, various techniques have been proposed for invalidating an operation or issuing an alarm when a driver performs an operation that causes an inappropriate gearshift command in the driving condition during driving of a vehicle. . For example, in the device disclosed in Japanese Utility Model Laid-Open Publication No. Sho 61-5235, when the driver performs an inappropriate selection operation (for example, when the forward drive range; Is performed, the range is maintained until the condition for allowing the shift command is satisfied (in other words, the commanded range switching is performed). Is prohibited) and an alarm device is operated. This actual opening 61-
In the device disclosed in Japanese Patent No. 5235, when the driver performs an operation that causes an inappropriate gearshift command in the driving condition during driving of the vehicle, the alarm device activates the range switching prohibition control that copes with the operation. Although it can be recognized that the selection operation has been performed, the selection operation is invalidated, so that the same selection operation must be repeated again when the condition for permitting the shift command is satisfied.

[0003] On the other hand, in the device disclosed in Japanese Patent Application Laid-Open No. 2-125174, during the above operation, the gear position is maintained (in other words, the gear change is interrupted) until a condition for allowing a gear change command is satisfied. Since the shift is executed when the condition for permitting the shift command is satisfied, it is not necessary to repeat the same operation.

[0004]

However, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 2-125174, no alarm is issued while the gear is maintained, so that the condition for permitting the gearshift command is satisfied. The driver cannot recognize a certain timing, and the driver may feel uncomfortable due to an unexpected shift. In the case of a configuration in which no countermeasures are taken for the above operation, for example, when the above operation is performed in the D range → 1
In the case of the range selection operation, when a condition for allowing a shift command is satisfied due to a decrease in vehicle speed, the shift (in this case, shifting to the first speed) is suddenly executed at an unexpected timing, and a large The same shock as described above occurs due to the engine braking force, and the driver feels discomfort.

According to the present invention, the shift to the gear position selected by the driver's select operation is temporarily suspended according to the driving condition, and thereafter, the shift is anticipated by the shift that occurs when the driving condition changes and the suspension is released. If it occurs at a timing that does not occur, the first operation is performed to hold the shift from the time of the select operation to the time of the shift command and to execute the shift when the shift command is issued.
It is an object of the present invention to solve the above-mentioned problem by issuing a second alarm.

[0006]

To this end, the vehicle speed change warning device of the present invention, as shown in FIG. 1, shows a concept of manually selecting a desired one of a plurality of ranges by operating a select bar. A range detecting means for detecting a selected range, a driving situation detecting means for detecting a driving situation of the vehicle, and a selection based on signals from the driving situation detecting means and the range detecting means. Shift determining means for determining whether or not a shift to a gear corresponding to the set range can be executed; and, if the shift determining means determines that a shift to the gear cannot be executed, the shift to an executable state is performed. A first alarm unit that suspends the shift to the gear and issues a first alarm, and a second alarm when the shift determination unit determines that the shift to the gear is feasible during the suspension. Be made comprises a second alarm means for issuing an alarm is characterized in.

[0007]

According to the present invention, when the driver manually selects one of the plurality of ranges of the transmission by operating the select lever during traveling, the range detecting means detects the selected range and operates the vehicle. The situation detecting means detects a driving situation of the vehicle,
The shift determining means determines whether a shift to a gear corresponding to the range selected in the driving situation can be executed, and the first alarm means determines whether a shift to the gear can not be executed in the driving situation. Suspends the shift to the gear position until it becomes executable and issues a first alarm, and the second alarm means issues a second alarm when the shift to the gear stage becomes executable while being held. As a result, the driver can accurately grasp the timing at which the shift is executed by the second warning, and can expect a shock accompanying the shift, so that the driver does not feel uncomfortable.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a diagram showing a configuration of a first embodiment of a vehicle speed change warning device according to the present invention, in which 10 indicates a select lever. The select lever 10 is operated by the driver to manually select a range. The range that can be selected in the automatic transmission 11 (hereinafter referred to as a select range) is, for example, D in the case of a five-speed automatic transmission. (Forward running) range, 3 range, 2 range, 1 range (also referred to as L range), R (reverse running) range, P (parking) range, N
There is a (neutral) range (in the case of a 4-speed automatic transmission, there are the above ranges except for three ranges).

The automatic transmission 11 selectively operates (fastens) various friction elements (not shown) to set a predetermined gear (one of first to fifth speeds in the case of a five-speed automatic transmission). The selected gear is used to transmit the power input from the engine 12 to the transmission output shaft 13 at this gear, and the gear is shifted to another gear by changing the engagement element to be operated. A controller 14 is provided for speed change control of the automatic transmission 11. The controller 14 is a range sensor as a range detecting means for detecting a select range of the select lever 10.
15 select range signals (D, 3, 2, 1, R,
P, N), an engine speed signal Ne from an engine speed sensor 16 for detecting the number of revolutions of the engine 12, and a vehicle speed signal V from a vehicle speed sensor 17, and the control shown in FIG. Alarm device by running the program
Performs alarm output control for 18.

That is, in the control program of FIG. 3 executed by interruption after the operation of the select lever, first, in step 101, the selection range (when the automatic transmission 11 is at the fifth speed, D, 3, 2, 1, R, P,
N), the engine speed Ne and the vehicle speed V are read, and in the next step 102, it is determined whether or not a shift to a gear corresponding to the select range can be executed (in this step 102, the controller). 14 functions as shift determination means). The determination in step 102 is made based on a predetermined shift diagram and vehicle speed as in the normal shift control. For example, when one range is selected from the D range fourth speed, the determination is that the D range is in the fourth speed state. The vehicle speed condition becomes NO because the vehicle speed is
2 selects step 103.

In step 103, a gear change command is output to a gear (step 2 in the case of the above gear shift) which can be changed by normal gear shift control by a control program (not shown), and in next step 104, the alarm device 18 is operated. (Step 104). In this step 104, the controller 14 functions as first alarm means. After execution of step 104, the control is returned to step 101, and steps 101 and thereafter are executed again.

In the second and subsequent control routines,
Until the shift (shift to the first speed in the above case) becomes possible and the determination in step 102 becomes YES, step 103-
The loop of NO-103 of 104-101-102 is repeated, and the first alarm continues to be issued. When the shift is enabled, step 102 selects step 105. Step 10
In step 5, the ON / OFF state of the first alarm is checked. Since the first alarm is initially ON, control is performed in step 10.
From NO of 5 go to step 106 to turn off the first alarm
Then, in the next step 107, the alarm device 18 is operated to perform an alarm output control for issuing a second alarm (in this step 107, the controller 14 functions as a second alarm means).

The second alarm is issued until the determination in the next step 108 becomes YES, that is, a preset time T of a preset timer (for example, a time that is sufficiently shorter than the activation time of the first alarm). ), And when the set time T has elapsed, the second alarm is turned off in step 109. In this state, since the shift (shift to the first speed in the above case) is already executable, in the next step 110, a shift command up to the shift speed is output by a normal shift control by a control program (not shown). I do. After the execution of this step 110, when the control proceeds to steps 101-102-105, the above-mentioned step 10 is executed.
Execution of step 6 results in step 105 being YES and step
Since 110 is selected, the gear shift corresponding to the driver's select operation of the select lever 10 can be executed from the beginning, and the control normally proceeds to step 110 in the same manner as in the case where the control proceeds to YES in steps 101-102 and YES-105. Is executed.

The operation of the above control will be described with reference to FIG.
While the vehicle is running, when the driver performs a select operation from the D range to the 1 range by using the select lever 10, for example, if the vehicle speed V at that time is a high vehicle speed that allows the D range 4th speed but does not allow the 1st speed, First, the execution of step 103 in FIG. 3 issues a 4 → 2 shift command at the instant t _{1 as} shown in FIG.
18 is activated to start the first alarm. The first alarm may be any signal that alerts the driver, and is, for example, a low volume continuous sound (peep).

[0015] The first alarm is the step shown in FIG.
Until 102 becomes YES, in other words 2 in FIG.
→ 1 and continues until the instant t ₂ to the shift command is made, instant t ₂
At the same time as the first alarm is terminated, step 107 in FIG.
As a result, the alarm device 18 is activated as shown in FIG. 4 to start the second alarm. Here, the second alarm needs to be one that the driver can expect that there is a possibility that a shift accompanied by a sudden change in the behavior of the vehicle may occur. For example, the second alarm is a loud intermittent sound (beep beep). . This second alarm is shown in FIG.
By executing the loop of NO-107 in steps 107-108 of FIG. 4, the operation is continued for the predetermined time T shown in FIG.
When the shift command (2 → 1 shift command) up to the shift speed is output by executing step 110, the driver can accurately grasp the timing at which the shift is executed, and the shock ( There is no uncomfortable feeling because a shock due to a large engine braking force at the first speed can be expected.

In the above-described embodiment, an example in which the present invention is applied to an automatic transmission has been described. However, the present invention is not limited to this. (A transmission that functions in the same manner as the transmission developed under the trade name of Navi5). In the above embodiment, an example in which the present invention is applied to a downshift is shown. However, the present invention can also be applied to a case where an upshift that may be stuck by a driver's selecting operation occurs. Further, instead of the alarm, an indicator lamp may be turned on, or the select lever may be made heavy.

[0017]

As described above, in the vehicle speed change warning device of the present invention, the shift to the gear selected by the driver's select operation is temporarily suspended according to the driving condition, and thereafter the driving condition changes and the suspension is changed. If the shift occurs at unexpected timing due to the shift that occurs when
The first and second gears are used to hold a shift from the time of a select operation to a shift command and to execute a shift at the time of a shift command.
Is issued, the driver can accurately grasp the timing at which the shift is executed by the second alarm, and can expect a shock accompanying the shift, so that the driver does not feel uncomfortable.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of the present invention.

FIG. 2 is a diagram showing the configuration of a first embodiment of a vehicle shift warning device of the present invention.

FIG. 3 is a flowchart showing alarm output control for an alarm device by a controller in the example.

FIG. 4 is a diagram for explaining the operation of the example.

[Explanation of symbols]

 10 Select bar 11 Automatic transmission 14 Controller 15 Range sensor (range detecting means) 16 Engine speed sensor (driving state detecting means) 17 Vehicle speed sensor (driving state detecting means) 18 Alarm device (first alarm means, second alarm means) )

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-8546 (JP, A) JP-A-2-229954 (JP, A) JP-A-2-125174 (JP, A) JP-A 64-64 47668 (JP, A) JP-A 2-67157 (JP, U) JP-A 61-5235 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16H 59/00-61 / 12 F16H 61/16-61/24 F16H 63/40-63/48

Claims (1)

(57) [Claims] 1. A vehicle equipped with a transmission capable of manually selecting a desired one of a plurality of ranges by operating a select bar, a range detecting means for detecting the selected range, and detecting a driving condition of the vehicle. Operating state detecting means for performing the operation; shifting determining means for determining, based on signals from the operating state detecting means and the range detecting means, whether a shift to a gear corresponding to the selected range can be executed; If the determining means determines that the shift to the gear position cannot be executed, first alarm means for suspending the shift to the gear position and issuing a first alarm until the gear shift becomes executable; A second warning means for issuing a second warning when the shift determining means determines that the shift to the gear position is executable.