JP2004142546A - Vehicle operation management device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily grasp generation of an alarm concerning safe driving under operation or generation of vehicular behavior concerning risk avoidance. <P>SOLUTION: This vehicle operation management device is provided with a means generating the alarm concerning safe driving (attention attracting buzzer 4 etc.), a means counting the number of times of generation of the alarm from the beginning of the operation record of the vehicle if the alarm is generated (electronic control unit 6 etc.), a means displaying the count value (display 8 for the number of times of attention attraction etc.), a means detecting generation of the vehicular behavior of risk avoidance(sudden braking determining part etc.), a means counting the number of times of generation of risk-avoidance behavior from the beginning of the operation record of the vehicle at the time of the detection (number of times of sudden braking memory part 17c etc.), and a means displaying the count value (display output computing part 17b and display 18 for the number of times of sudden braking etc.). <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for ascertaining a frequency of occurrence of an alarm relating to safe driving and a frequency of occurrence of a vehicle behavior relating to danger avoidance as part of vehicle operation management.
[0002]
[Prior art]
Various types of warning means and danger avoidance means are known to ensure safe driving of vehicles. For example, as a rollover prevention device for avoiding the rollover of the vehicle, means for detecting the roll angle of the vehicle body, means for detecting the lateral acceleration of the vehicle body, and the degree of danger to the rollover of the vehicle from these detection signals. (Patent Literature 1 and Patent Literature 1) disclose a device including a unit that determines the vehicle speed and a unit that controls the driver to generate an alarm (warning) that urges the driver to avoid danger when the degree of danger exceeds a predetermined level. Reference 2).
[0003]
[Patent Document 1]
JP-A-2001-347910
[Patent Document 2]
JP-A-2002-166745
[0004]
[Problems to be solved by the invention]
In such a device, it is necessary only to ensure the safety during operation, and if there is no report of the driver such as the generation of an alarm, what kind of danger occurred during the operation and how many times it occurred , Can not grasp accurately. In other words, the experience of the driver cannot be used for vehicle operation management and the like.
[0005]
The present invention has been made in view of such circumstances, and it is possible to easily grasp the occurrence of an alarm relating to safe driving during operation and the occurrence of a vehicle behavior relating to danger avoidance without a report from the driver. It is to be able to do.
[0006]
[Means for Solving the Problems]
The first invention includes a means for generating a warning relating to safe driving, a means for counting the number of warnings issued from the beginning of the operation history of the vehicle when a warning is generated, and a means for displaying the count value. It is characterized by the following.
[0007]
According to a second aspect of the present invention, there is provided a means for generating a warning relating to safe driving, a means for counting the number of warnings generated from the beginning of the operation history of the vehicle when a warning is generated, and a count value when a request based on manual operation is generated. And means for displaying.
[0008]
According to a third aspect of the present invention, there is provided a means for generating a warning relating to safe driving, a means for counting the number of times a warning has been issued since the beginning of the operation history of the vehicle when the warning is generated, and a method of counting the count value for a predetermined time when the operation of the vehicle starts. And means for displaying only
[0009]
According to a fourth aspect of the present invention, there is provided means for generating a warning relating to safe driving, means for counting the number of times a warning has been issued since the start of operation of the vehicle when the warning is generated, and means for displaying the count value during operation of the vehicle. , Is provided.
[0010]
According to a fifth aspect of the present invention, in accordance with any one of the first to fourth aspects of the present invention, the means for generating a warning relating to safe driving includes a means for detecting a roll angle of the vehicle body and a means for detecting a lateral acceleration of the vehicle body. Means for detecting, a means for determining the degree of danger to rollover of the vehicle from these detection signals, and means for controlling to generate an alarm when the degree of danger exceeds a predetermined level. .
[0011]
A sixth invention is a means for detecting occurrence of danger avoidance vehicle behavior, a means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of detection, and a means for displaying the count value. It is characterized by having.
[0012]
A seventh aspect of the present invention provides a means for detecting occurrence of a vehicle behavior for avoiding danger, a means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of the detection, and a method for generating a request based on an artificial operation. Means for displaying the count value.
[0013]
An eighth invention is a means for detecting occurrence of a vehicle behavior for avoiding danger, a means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of detection, and a count value at the start of operation of the vehicle. For a predetermined time.
[0014]
A ninth invention is a means for detecting the occurrence of a vehicle behavior for avoiding danger, a means for counting the number of occurrences of danger avoidance behavior since the start of operation of the vehicle at the time of detection, and displaying the count value during operation of the vehicle. Means for performing the operation.
[0015]
According to a tenth aspect, in accordance with any one of the sixth to ninth aspects, the means for detecting occurrence of danger avoiding vehicle behavior detects occurrence of a sudden braking state or a sharp turning state of the vehicle. It is characterized by doing.
[0016]
【The invention's effect】
In the first aspect of the invention, the number of warnings issued from the beginning of the operation history of the vehicle is displayed, which can be used for vehicle operation management and the like.
[0017]
In the second invention, the number of warnings issued from the beginning of the operation history of the vehicle is displayed when necessary by an artificial operation for generating a request, which can be used for vehicle operation management and the like.
[0018]
In the third aspect of the invention, the number of warnings issued from the beginning of the operation history of the vehicle at the start of the operation of the vehicle is displayed for a predetermined time, so that the driver can be prompted to drive the vehicle safely.
[0019]
In the fourth invention, the number of warnings issued since the start of the vehicle is displayed during the operation of the vehicle, and the driver can be prompted to drive the vehicle safely.
[0020]
In the fifth invention, the same effect as any one of the first to fourth inventions can be obtained based on the generation of an alarm relating to the prevention of rollover of the vehicle.
[0021]
In the sixth aspect, the number of occurrences of the danger avoidance behavior from the beginning of the operation history of the vehicle is displayed, which can be used for the operation management of the vehicle.
[0022]
In the seventh invention, the number of occurrences of the danger avoidance behavior from the beginning of the operation history of the vehicle is displayed when necessary by an artificial operation for generating a request, which can be used for the operation management of the vehicle.
[0023]
In the eighth invention, the number of occurrences of the danger avoidance behavior from the beginning of the operation history of the vehicle at the start of the operation of the vehicle is displayed for a predetermined time, and the driver can be prompted to drive safely.
[0024]
In the ninth aspect, the number of occurrences of the danger avoidance behavior from the start of operation of the vehicle is displayed during operation, and the driver can be prompted to drive safely.
[0025]
In the tenth aspect, the same effect as any one of the sixth to ninth aspects can be obtained based on the detection of the sudden braking state or the sharp turning state of the vehicle.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a first embodiment according to an application to a truck rollover prevention device, in which a vehicle height sensors 1a and 1b, a lateral acceleration sensor 2, a display unit 3 (display), an alert buzzer are provided. 4 (alarm) and an electronic control unit 6 (ECU).
[0027]
Reference numeral 10 denotes a frame which is suspended on the axle (rear shaft) via left and right suspension springs 1a and 12b. The vehicle height sensors 1a and 1b are arranged on the left and right sides of the frame 10 so as to measure the distance between the frame 10 (above the spring) and the axle (below the spring) in order to detect the height of the vehicle. The lateral acceleration sensor 2 detects the lateral acceleration (lateral G) of the vehicle body, and is provided on the carrier side (the spring-side frame 10 side).
[0028]
The display unit 3 is installed in the vicinity of the driver's seat, and on the screen thereof, in addition to the roll indicator unit 7, a display unit 8 for the number of alarms (attention) is set. The roll indicator unit 7 displays the vehicle pictorial diagram 7a so that swing control is possible. An annular zone 7c surrounds the vehicle picture 7a, and a danger zone 7d for each color is set in a part thereof. The swing of the vehicle picture 7a can be easily recognized, and the pointer 7b for the annular zone 7c is displayed so as to be able to perform the swing control as in the case of the vehicle picture 7a. The alert number display section 8 is composed of a plurality of numeral display elements 8a and 8b (variably displaying numerals 0 to 9).
[0029]
The warning buzzer 4 is arranged in the driver's cab, and when the danger of the vehicle rolling over increases, an alarm is issued to urge the driver to avoid danger.
[0030]
The electronic control unit 6 forms the center of the control system, and controls the display unit 3 and the alert buzzer 4 based on the detection signals of the vehicle height sensors 1a and 1b and the lateral acceleration sensor 2.
[0031]
2, the electronic control unit 6 includes a roll angle calculation unit 6a, a loading state determination unit 6b, an emergency determination unit 6c, a number of alerts storage unit 6f, a display (indicator) output calculation unit 6d, and a buzzer output unit 6e. .
[0032]
The roll angle calculator 6a geometrically calculates the roll angle (R) of the vehicle body based on the detection signals (HL, HR) of the vehicle height sensors 1a, 1b. In order to smooth fine fluctuations of the roll angle (R) due to irregularities on the road surface, a moving average (RMA) of the roll angle (R) in a predetermined time is sequentially calculated. Further, a change rate (RMAR) of the roll angle moving average (RMA) is calculated.
[0033]
The loading state determination unit 6b sequentially calculates a moving average (GMA) of the lateral G for a predetermined time in the detection signal (G) of the lateral acceleration sensor 2 in order to smooth a minute fluctuation due to a disturbance factor. Then, when the lateral G moving average (GMA) is equal to or larger than a predetermined value, a roll index (RI) = (RMA) / (GMA) is calculated from the roll angle average (RMA) and the lateral G moving average (GMA). Regarding the roll angle (R) and the lateral G, those that occur to the right in the traveling direction of the vehicle are given a positive sign, and those that occur to the left are also given a negative sign.
[0034]
The roll index (RI) indicates the roll characteristics of the vehicle, and the larger the roll index (RI), the easier the vehicle body rolls. The load state determination unit integrates the calculated value of the roll index (RI) while the horizontal G moving average (GMA) is equal to or greater than a predetermined value. The elapsed time of the integration process is counted, and when the count value does not reach the predetermined time, the integrated value of the roll index (RI) is cleared. When the count value reaches the predetermined time, the average roll index is calculated from the integrated value. (RIAL, RIAR) is calculated. The average roll index (RIAL, RIAR) is stored for each of the left and right from the sign of the roll angle moving average (RAM) or the lateral G moving average (GMA).
[0035]
When both the left and right average roll indexes (RIAL, RIAR) are stored, the load state determination unit 6b determines the load state (single load, high load, constant load, half load) based on these average roll indexes (RIAL, RIAR). Processing of product, empty load) is processed. The load state determination unit 6b includes a reference value (J01H, J02H) to be compared with the absolute value of the left-right difference (RIAL-RIAR) of the average roll index (RIAL, RIAR), and the left and right average roll index (RIAL, RIAR). The reference value (JLL, JLH, JGH) to be compared with the average value (RIA) = (RIAL + RIAR) / 2 is set.
[0036]
When | RIAL-RIAR | ≧ J01H and (RIAL-RIAR)> 0, it is determined that the cargo is unbalanced to the left in the traveling direction of the vehicle, while | RIAL-RIAR | ≧ J01H and (RIAL-RIAR) If <0, it is determined that the load is unbalanced to the right in the traveling direction of the vehicle. Furthermore, when J01H <| RIAL-RIAR | ≦ J02H, the degree of unloading is determined to be small, and when | RIAL-RIAR |> J02H, the degree of unloading is determined to be large.
[0037]
When | RIAL-RIAR | <J01H and (RIA) ≧ JGH, the load is in a flat state where the center of gravity of the load is high, and when | RIAL-RIAR | <J01H and JLL ≦ (RIA) <JGH, the load is Constant product in flat condition, | RIAL-RIAR | <J01H and JLH ≦ (RIA) ≧ JLL, half load in flat condition, and empty load when (RIA) <JLH, Is determined.
[0038]
The emergency judgment section 6c judges the danger of the vehicle rolling over based on the calculation information (RMA, RMAR) of the roll angle calculation section 6a and the judgment information of the load state judgment section 6b. The command is output to the display output calculation unit 6d, the buzzer output unit 6e, and the number of alerts storage unit 6f.
[0039]
It is determined whether or not to enter a process of estimating a maximum roll angle (RMAX) used for determining an urgency described later. A reference value JRS according to the loading state (single load, high load, constant load, half load, empty load) is selected, and the process of estimating the maximum roll angle (RMAX) is executed with (RMA) ≧ JRS as a start condition. You. The emergency judgment unit 6c calculates the roll progress time (TRI) = (− A) × (| RMA |) + (B). A is the time required for one roll angle (R) to occur, B is the time required for the roll to reach the maximum roll angle (RMAX), and these coefficients A and B are set according to the loading condition. Is done. By this calculation processing, the roll progress time (TRI) from when the current roll angle moving average (RMA) reaches the maximum roll angle (RMAX) is calculated. Then, the maximum roll (RMAX) = roll progress time (TRI) × roll angle moving average change rate (| RMAR |) + roll angle moving average (| RMA |) is calculated.
[0040]
The calculated value (RMAX) is stored, the current stored value is compared with the previous stored value, and the determined value (RMAXC) of the maximum roll angle (RMAX) is updated to a larger value. The emergency determining unit 6c determines the degree of urgency based on the determined value (RMAXC) of the maximum roll angle (RMAX). The determined value (RMAXC) is compared with the judgment value JR3 of the urgency I, and when (RMAXC) ≧ JR3, the urgency III is judged. When (RMAXC) <JR3, the determined value (RMAXC) is compared with the judgment value JR2 of the urgency II, and when (RMAXC) ≧ JR2, the urgency II is judged. When (RMAXC) <JR2, the degree of urgency I is determined. The judgment values JR3 and JR2 of the degree of urgency are set according to the state of cargo.
[0041]
When the degree of urgency I is determined, the determination value SR1 of the degree of urgency I according to the loading state and the degree of urgency II are determined, and the determination value SR2 of the degree of urgency II and the degree of urgency III according to the loading state are determined. Then, the judgment value SR3 of the urgency III according to the loading state is selected. In the case of the urgency I, the roll angle moving average (| RMA |) is compared with the determination value SR1, and when (| RMA |) ≧ SR1, a warning command of the urgency I is output. In the case of the urgency II, the roll angle moving average (| RMA |) is compared with the determination value SR2, and if (| RMA |) ≧ SR2 is satisfied, an urgency II reminder command is output. In the case of the urgency III, the roll angle moving average (| RMA |) is compared with the determination value SR3, and if (| RMA |) ≧ SR3 is satisfied, a warning instruction of the urgency III is output.
[0042]
The display output calculation unit 6d controls the vehicle picture 7a and the hands 7b of the roll indicator 7 to swing to an angular position according to the roll angle moving average (RMA) of the roll angle calculation unit 6a. Further, when the horizontal G moving average (GMA) of the load state judging unit 6b is equal to or more than a predetermined value, the display of each color of the annular zone 7c is controlled according to the direction and the size of the horizontal G moving average (GMA). Further, based on the alerting command of the emergency judgment unit 6c, the danger zone 7d for each color of the annular zone 7c is illuminated in yellow when the urgency level is I according to the urgency levels I to III, and when the urgency level is II. At this time, the lighting is controlled to turn red, and when the urgency is III, it is controlled to flash red. The number-of-warnings display unit 8 is controlled as described later based on the output of the number-of-warnings storage unit 6f (and the total number display request switch 15).
[0043]
The buzzer output unit 6e sets the alert buzzer 4 in accordance with the urgency I to III in order to urge the driver to avoid danger based on the determination information of the load state determining unit 6b and the alert command of the emergency determining unit 6c. Control so that the volume and tone change.
[0044]
The alert number storage unit 6f includes means for counting the number of alerts (warnings) generated from the beginning of the operation history of the vehicle, and means for storing the count value (total alert number). The counting means adds 1 to the stored value each time the alerting instruction from the emergency judgment section 6c is received. Since the emergency judgment unit 6c outputs the alerting commands of the urgencies I to III, the alerting number storage unit 6f counts the number of alerting times for one of these alerting commands (predetermined alerting command). It is set to perform storage processing. Of course, the count and storage of the number of occurrences may be individually processed for each of the urgency commands I to III.
[0045]
FIG. 3 is a flowchart for explaining the control content of the display output calculation unit 6d with respect to the number-of-warnings display unit 8 of the display unit 3, and is started when the engine key switch is turned ON. In S1, it is determined whether the engine has started. If the determination in S1 is yes, in S2, the total number of alerts is read from the alert count storage unit 6f, and the number is displayed on the alert count display unit 8 for a predetermined time (several seconds). In S3, the display of the number of alerts is set to 0 (initial value). If the determination in S1 is no, the process returns to the return.
[0046]
In S4, it is determined whether or not the number-of-reminders storage unit 6f counts +1 according to a predetermined reminder command. If the determination in S4 is yes, in S5, the display frequency of the alert on the frequency display unit 8 is updated to +1. If the determination in S4 is no, the process returns to the return.
[0047]
FIG. 4 is a flowchart for explaining the control contents of the number-of-attentions storage unit 6f. In S11, it is determined whether or not a predetermined attention instruction is issued (input from the emergency judgment unit 6c). If the determination in S11 is yes, the stored value of the total number of times is read in S12 and S13, and the stored value is updated to +1. If the determination in S11 is no, the process returns to the return.
[0048]
With such control, the number of times an alarm (attention) has been generated from the beginning of the operation history of the vehicle at the start of operation of the vehicle is displayed for a predetermined time, and during the operation of the vehicle, attention (alarm) from engine start is displayed. Is displayed. For this reason, the driver can be urged to perform careful and safe driving against the rollover of the vehicle. Also, by recording the total number of alerts for the operation manager, the number of alerts for each operation of the vehicle can be accurately grasped, and this information is used not only by the driver's report but also for operation management. Be able to take advantage of it.
[0049]
FIG. 5 is another flowchart for explaining the control contents of the display output calculation unit 6d, which is started by turning on an engine key switch. 1 and 2, a switch 15 is provided for generating a request to display the total number of times on the number-of-warnings display section 8 based on an artificial operation.
[0050]
In S1, it is determined whether or not the engine has started. If the determination in S1 is yes, in S2, the number display of the display unit 3 is set to 0 (initial value). If the determination in S1 is no, the process returns to the return. In S3, it is determined whether or not the number-of-times-of-attention storage unit 6f counts +1 according to a predetermined alerting command. If the determination in S3 is yes, in S4, the number of times of alerting of the number display section 8 is updated to +1. If the determination in S3 is no, the process jumps to S5.
[0051]
In S5, it is determined whether the display request switch 15 for the total number of times (see FIGS. 1 and 2) is ON. If the determination in S5 is yes, in S6, the total number of alerts is read from the alert count storage unit 6f, and the number is displayed on the alert count display unit 8 for a predetermined time (several seconds). If the determination in S5 is no, the process returns to the return without changing the display of the number of alerts.
[0052]
With this control, the number of times of alerting (warning) from the start of the engine is displayed during the operation of the vehicle. When the display request switch 15 is turned on, the number of times of alerting from the beginning of the operation history of the vehicle is displayed. Therefore, in addition to prompting the driver to drive safely, the total number of times can be displayed for the operation manager by a simple switch operation when necessary, and this can be used for operation management.
[0053]
By adding means for storing the number of occurrences of alerts (counts) from engine start (vehicle operation start) at the time of engine stop (vehicle operation end) in the alert number storage unit 6f, the next operation start At times, it may be possible to control the number of times to be displayed for a predetermined time.
[0054]
The present invention (the configuration according to claims 1 to 4 of the present application) is not limited to application to a rollover prevention device, but can also be applied to various alarm systems related to safe driving of a vehicle. is there. For example, a vehicle collision prevention device (means for measuring the distance to an obstacle or a vehicle ahead, means for calculating a relative speed from a change in the measured value, means for determining the possibility of a collision from these distances and relative speeds A means for controlling an alarm device in the driver's cab according to the determination), a device for preventing drowsiness of the vehicle (detected from a meandering pattern of the vehicle detected by a steering angle sensor or a lateral acceleration sensor of the vehicle or an image of a camera). Means for judging the driver's dozing state based on the eye opening / closing pattern, and means for controlling an alarm device in the driver's cab in accordance with the judgment); Means for determining whether or not the vehicle is likely to deviate toward the end of the lane from the blinker signal of the vehicle, and means for controlling an alarm device in the driver's cab according to the determination). When the control system shown in FIG. 5 is applied, the number of occurrences of the operation history of the vehicle from the beginning and the number of occurrences during the operation from the start of the engine (the operation of the vehicle) can be displayed for the warnings related to the safe driving. It becomes.
[0055]
6 and 7 show a second embodiment according to the behavior of the vehicle for avoiding danger, in which a means 16 (a longitudinal acceleration sensor 16a or a vehicle speed sensor 16b, A wheel speed sensor 16c) is provided. Reference numeral 18 denotes an indicator of the number of times of sudden braking, and reference numeral 17 denotes an electronic control unit (ECU). The electronic control unit 17 includes a sudden braking determination unit 17a, a sudden braking frequency storage unit 17c, and a display (indicator) output operation unit 17b.
[0056]
The sudden braking determination unit 17a determines, based on a detection signal of the longitudinal acceleration sensor 16a (or the vehicle speed sensor 16b or the wheel speed sensor 16c), that the acceleration (deceleration) in the longitudinal direction (traveling direction) of the vehicle exceeds a predetermined level. The count command is output to the sudden braking times storage unit 17c and the display output calculation unit 17b. 17d is means for calculating the deceleration of the vehicle from the detection signal of the vehicle speed sensor 16b (deceleration calculation unit), and 17e is means for calculating the deceleration of the wheel from the detection signal of the wheel speed sensor 16c (deceleration calculation unit). is there. The sudden braking determination unit 17a may be set so as to comprehensively determine the occurrence of the sudden braking state from the detection signal of the longitudinal acceleration sensor 16a, the detection signal of the vehicle speed sensor 16b, and the detection signal of the wheel speed sensor 176c. .
[0057]
The sudden braking number storage unit 17c includes a unit that counts the number of occurrences of the sudden braking state from the beginning of the operation history of the vehicle, and a unit that stores the count value (total number of times). The counting means updates the stored value to +1 each time it receives a count command from the sudden braking determination unit 17a. The display output calculation unit 17b performs control as described later based on the output of the rapid braking number storage unit 17c (and the total number display request switch 15a).
[0058]
FIG. 8 is a flowchart for explaining the control contents of the display output calculation unit 17b, which is started when the engine key switch is turned ON. In S21, it is determined whether the engine has started. If the determination in S21 is yes, in S22, the total number of times of braking is read from the rapid braking times storage unit 17c, and the numerical value is displayed on the rapid braking times display unit 18 for a predetermined time (several seconds). In S23, the count display on the display 18 is set to 0 (initial value). If the determination in S21 is no, the process returns to the return.
[0059]
In S24, it is determined whether or not a count command is input from the sudden braking determination unit 17a. If the determination in S24 is yes, in S25, the number of times of rapid braking of the display 18 is updated to +1. If the determination in S24 is no, the process returns to the return.
[0060]
FIG. 9 is a flowchart illustrating the control content of the sudden braking number storage unit 17c. In S31, it is determined whether or not a count command is input from the sudden braking determining unit 17a. If the determination in S31 is yes, in S32 and S33, the stored value of the total number of times is read, and the stored value is updated to +1. If the determination in S31 is no, the process returns to the return.
[0061]
By such control, the number of occurrences of the sudden braking state from the beginning of the operation history of the vehicle at the start of the operation of the vehicle is displayed for a predetermined time, and during the operation of the vehicle, the number of occurrences of the sudden braking state from the engine start is reduced. Is displayed. Therefore, the driver can be encouraged to drive the vehicle carefully and safely. Also, for the operation manager, by recording the total number of times of sudden braking occurrence, the number of times of sudden braking for each operation of the vehicle can be accurately grasped, and this information is managed not only by the driver's report but also by the operation management. Will be able to take advantage of it.
[0062]
FIG. 10 is another flowchart for explaining the control contents of the display output calculation unit 17b, and is started by turning on an engine key switch. 6 and 7, a switch 15a is provided to generate a request for displaying the total number of times on the display 18 of the number of times of sudden braking based on a manual operation.
[0063]
In S21, it is determined whether or not the engine has started. If the determination in S21 is yes, in S22, the number display of the display unit is set to 0 (initial value). If the determination in S21 is no, the process returns to the return. In S23, it is determined whether or not the count command from the sudden braking determination unit 17a is input. If the determination in S23 is yes, in S24, the number of times of rapid braking of the display 18 is updated to +1. If the determination in S23 is no, the process jumps to S25.
[0064]
In S25, it is determined whether the display request switch 15a (see FIGS. 6 and 7) for the total number of times is ON. If the determination in S25 is yes, in S26, the total number of times is read from the sudden braking number storage unit 17c, and the numerical value is displayed on the display 18 for a predetermined time (several seconds). If the determination in S25 is no, the process returns to the return without changing the number display on the display unit 18.
[0065]
By such control, during the operation of the vehicle, the number of occurrences of the sudden braking state from the start of the engine is displayed. Further, when the display request switch 15a is turned on, the number of occurrences of the sudden braking state from the beginning of the operation history of the vehicle is displayed. This not only encourages the driver to drive carefully and safely, but also enables the operation manager to display the total number of times of sudden braking by operating a simple switch when necessary, which can be used for operation management. become.
[0066]
A means for storing the number of occurrences of the sudden braking state from engine start (vehicle operation start) at the time of engine stop (vehicle operation end) is added to the sudden braking number storage unit 17c, so that the number of sudden braking states at the next operation start is increased. May be controlled so as to be displayed for a predetermined time.
[0067]
FIGS. 11 and 12 show a third embodiment, in which means 21 (lateral acceleration sensor 21a, yaw rate sensor 21b, or steering angle sensor 21c) for detecting a sharp turning (sudden steering) state of the vehicle is provided. . Reference numeral 23 denotes a warning (alarm) buzzer, and reference numeral 24 denotes an indicator for the number of times of sudden steering, which are arranged in the cab. Reference numeral 22 denotes an electronic control unit (ECU), which includes a sharp steering wheel determination unit 22a, a buzzer output unit 22d, a sharp steering wheel count storage unit 22c, and a display (indicator) output calculation unit 22b.
[0068]
When the lateral G (or yaw rate or steering angle) of the vehicle exceeds a predetermined level based on the detection signal of the lateral acceleration sensor 21a (or yaw rate sensor 22b or steering angle sensor 22c), the sharp steering determination section 22a outputs a buzzer output section. Along with the alerting instruction to the counter 23, a count instruction is output to the sudden steering wheel number storage unit 22c and the display output calculation unit 22b. The sudden braking determination unit 22a may be set so as to comprehensively determine the occurrence of a sudden steering condition from the detection signal of the lateral acceleration sensor 21a, the detection signal of the yaw rate sensor 21b, and the detection signal of the steering angle sensor 21c. good.
[0069]
When the buzzer output unit 23 receives the alerting command from the sudden steering wheel determination unit 22a, the buzzer output unit 23 controls the alerting buzzer in the cab to operate until the alerting command is released. The sudden steering wheel count storage unit 22c includes a unit that counts the number of occurrences of the sudden steering wheel state from the beginning of the operation history of the vehicle, and a unit that stores the count value (total number of times of sudden steering wheel). The counting means updates the stored value to +1 each time it receives a count command from the sharp steering determination unit 22a. The display output calculation unit 22b performs control as described later based on the output of the sudden steering wheel number storage unit 22c (and the total number display request switch 15b).
[0070]
FIG. 13 is a flowchart for explaining the control contents of the display output calculation unit 22b, which is started when the engine key switch is turned on. In S41, it is determined whether or not the engine has started. If the determination in S41 is yes, in S42, the total number of times is read from the number-of-steep-handles storage unit 22c, and the numerical value is displayed on the number-of-steep-handles display 24 for a predetermined time (several seconds). In S43, the number display on the display 24 is set to 0 (initial value). If the determination in S41 is no, the process returns to the return.
[0071]
In S44, it is determined whether or not a count command is input from the sharp steering determination unit 22a. If the determination in S44 is yes, in S45, the number of times of rapid steering of the display 24 is updated to +1. If the determination in S44 is no, the process returns to the return.
[0072]
FIG. 14 is a flowchart for explaining the control contents of the sharp steering wheel number storage section 22c. In S51, it is determined whether or not a count command is input from the sharp steering wheel determination section 22a. If the determination in S51 is yes, in S52 and S53, the stored value of the total number of times is read, and the stored value is updated to +1. When the determination in S51 is no, the process returns to the return.
[0073]
By such control, the number of occurrences of the sudden steering state from the beginning of the operation history of the vehicle at the start of the operation of the vehicle is displayed for a predetermined time, and during the operation of the vehicle, the number of occurrences of the sudden steering state from the engine start is reduced. Is displayed. Therefore, the driver can be encouraged to drive the vehicle carefully and safely. Also, for the operation manager, by recording the total number of times of sudden steering, the number of times of sudden steering for each operation of the vehicle can be accurately grasped, and this information is used not only by the driver's report but also for operation management. Be able to take advantage of it.
[0074]
FIG. 15 is another flowchart for explaining the control contents of the display output calculation unit 22b, which is started by turning on an engine key switch. 11 and 12, a switch 15b is provided for generating a request for displaying the total number of times on the number-of-steep-handles display 24 based on a manual operation.
[0075]
In S41, it is determined whether or not the engine has started. If the determination in S41 is yes, the display of the number of times of sudden steering is set to 0 (initial value) in S42. If the determination in S41 is no, the process returns to the return. In S43, it is determined whether or not a count command from the sudden steering wheel determination unit 22a is input. If the determination in S43 is yes, in S44, the number of times of rapid steering of the display 24 is updated to +1. If the determination in S43 is no, the process jumps to S45.
[0076]
In S45, it is determined whether or not the display request switch 15b for the total number of times (see FIGS. 11 and 12) is ON. If the determination in S45 is yes, in S46, the total number of times is read from the number of times of sudden steering wheel storage section 22c, and the numerical value is displayed on the display 24 for a predetermined time (several seconds). If the determination in S45 is no, the process returns to the return without changing the number display on the display 24.
[0077]
With such control, during the operation of the vehicle, the number of occurrences of the sudden steering state from the start of the engine is displayed. When the display request switch 15b is turned on, the number of occurrences of the sudden steering state from the beginning of the operation history of the vehicle is displayed. This not only encourages the driver to drive carefully and safely, but also allows the operation manager to display the total number of times of sudden steering by using simple switches when necessary, which can be used for operation management. become.
[0078]
A means for storing the number of occurrences of the sudden steering state from the start of the engine (start of operation of the vehicle) when the engine is stopped (end of operation of the vehicle) is added to the number-of-steep-handles storage unit 22a. May be controlled so as to be displayed for a predetermined time.
[0079]
The present invention (the configuration according to claims 6 to 9 of the present application) is not limited to the display of the number of times of the sudden braking state or the sharp turning state, but may be applied to the display of the number of occurrences of the danger avoiding vehicle behavior. Widely applicable. For example, based on detection signals of a stability control system (lateral acceleration sensor, yaw rate sensor, steering angle sensor, wheel speed sensor), means for determining whether or not the behavior of the vehicle is in a range following the driver's operation, (A means for controlling the wheel driving force so as to suppress the behavior of the vehicle out of the range according to the driver's operation based on the control system), the control system as shown in FIGS. 8 to 10 or 13 to 15 is applied. Then, as for the number of activations of the system (controlling the behavior of the vehicle to avoid danger), the number of occurrences of the operation history of the vehicle from the beginning and the number of occurrences during the operation since the engine start (operation of the vehicle) can be displayed. .
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a system representing a first embodiment.
FIG. 2 is a block diagram similarly.
FIG. 3 is a flowchart for explaining control contents.
FIG. 4 is a flowchart for explaining control contents.
FIG. 5 is a flowchart for explaining control contents in the same manner.
FIG. 6 is a schematic diagram of a system representing a second embodiment.
FIG. 7 is a block diagram similarly.
FIG. 8 is a flowchart for explaining control contents.
FIG. 9 is a flowchart for explaining control contents.
FIG. 10 is a flowchart for explaining control contents.
FIG. 11 is a schematic diagram of a system representing a third embodiment.
FIG. 12 is also a block diagram.
FIG. 13 is a flowchart illustrating the control contents.
FIG. 14 is a flowchart for explaining control contents.
FIG. 15 is a flowchart illustrating the same control contents.
[Explanation of symbols]
3 Display unit
4 Warning buzzer
6,17,22 Electronic control unit
6a Roll angle calculator
6b Loading status judgment unit
6c Emergency judgment unit
6d, 17b, 22b Display (indicator) output operation unit
6e, 22d Buzzer output section
6f alert number storage
7 Roll indicator
8 Display section for the number of alerts (warnings)
15, 15a, 15b Total number display request switch
17a Rapid braking judgment unit
17c Rapid braking times storage
18 Display of the number of sudden braking
22a Sudden steering wheel judgment unit
22c Sudden steering wheel storage

Claims (10)

A vehicle comprising: a means for generating a warning relating to safe driving; a means for counting the number of times a warning has been issued since the beginning of the operation history of the vehicle when the warning is generated; and a means for displaying the count value. Operation management equipment. Means for generating an alarm relating to safe driving, means for counting the number of times an alarm has been issued from the beginning of the operation history of the vehicle when an alarm is issued, means for displaying the count value when a request based on manual operation is issued, An operation management device for a vehicle, comprising: Means for generating an alarm relating to safe driving, means for counting the number of times an alarm has been issued from the beginning of the operation history of the vehicle when an alarm is generated, means for displaying the count value for a predetermined time at the start of operation of the vehicle, An operation management device for a vehicle, comprising: Means for generating an alarm relating to safe driving, means for counting the number of times an alarm has been issued since the start of operation of the vehicle when an alarm is issued, and means for displaying the count value during operation of the vehicle. Vehicle operation management device. Means for issuing a warning relating to safe driving include means for detecting a roll angle of the vehicle body, means for detecting a lateral acceleration of the vehicle body, means for determining a degree of danger to rollover of the vehicle from these detection signals, The vehicle operation management device according to any one of claims 1 to 4, further comprising: means for controlling so as to generate an alarm when the degree of danger exceeds a predetermined level. Means for detecting the occurrence of vehicle behavior of danger avoidance, means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of detection, and means for displaying the count value, Operation management device of a running vehicle. Means for detecting the occurrence of danger avoidance vehicle behavior, means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of detection, and displaying the count value when a request based on human operation is generated Means for controlling the operation of a vehicle. Means for detecting occurrence of danger avoidance vehicle behavior, means for counting the number of occurrences of danger avoidance behavior from the beginning of the operation history of the vehicle at the time of detection, and displaying the count value for a predetermined time at the start of operation of the vehicle Means for controlling the operation of a vehicle. Means for detecting the occurrence of a vehicle behavior of danger avoidance, means for counting the number of occurrences of danger avoidance behavior from the start of operation of the vehicle at the time of detection, and means for displaying the count value during operation of the vehicle An operation management device for vehicles. The vehicle operation according to any one of claims 6 to 9, wherein the means for detecting occurrence of danger avoidance vehicle behavior detects occurrence of a sudden braking state or a sharp turning state of the vehicle. Management device.

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