CA2187677C - Digital vehicle speed monitoring and speed limiter device - Google Patents
Digital vehicle speed monitoring and speed limiter deviceInfo
- Publication number
- CA2187677C CA2187677C CA002187677A CA2187677A CA2187677C CA 2187677 C CA2187677 C CA 2187677C CA 002187677 A CA002187677 A CA 002187677A CA 2187677 A CA2187677 A CA 2187677A CA 2187677 C CA2187677 C CA 2187677C
- Authority
- CA
- Canada
- Prior art keywords
- vehicle
- speed
- threshold levels
- alarm signals
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/16—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator having means to prevent or discourage unauthorised use or adjusting of the controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/18—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Disclosed herein is a motor vehicle monitoring device, comprising monitoring means for monitoring the speed of the vehicle; register means for registering a plurality of speed threshold levels; alarm means responsive to the monitoring means and the register means for issuing a plurality of alarm signals, each of the alarm signals being distinctive from one another and each corresponding to a corresponding one of the threshold levels, the alarm means being further operable to issue one or more of the alarm signals as the vehicle is driven at a speed beyond a corresponding one or more of the threshold levels.
Description
SUBSTITUTE SPECIFICATION
DIGITAL SPEED MONITORING/LOGGING, WARNING AND SPEED
LIMITER DEVICE
TECHNICAL FIELD
This invention relates to devices for monitoring the operation of a motor vehicle.
BACKGROUND ART
Soon after the invention of motorized vehicles it became apparent that excessive speeds endangered not only the vehicle operator and passengers but also surrounding persons and property. Laws concerning speed were enacted and today are applicable to all jurisdictions and across all provinces and territories in the country, as well as in Ocountries around the world. In Canada, on an annual basis more than 3400 people lose their lives in motor vehicle accidents and almost 250,000 are injured. Speed is a factor in many accidents and speeders who crash are more likely to be killed. Young, inexperienced drivers are also most likely to be killed or injured in accidents involving excessive speeds. Thus, vehicle owners and parents have a vested interest when young drivers are operating motor vehicles.
Such accidents cost the North American public billions of dollars per year in insurance and health care costs. This invention could have an impact on accident rates and insurance and health care costs, not to mention the saving of lives.
It is therefore an object of the present invention to provide a novel device for monitoring operation of a motorized vehicle. 2 1 8 7 6 7 DISCLOSURE OF THE INVENTION
Briefly stated, the invention involves a A motor vehicle monitoring device, comprising:
monitoring means for monitoring the speed of the vehicle;
register means for registering a plurality of speed threshold levels;
alarm means responsive to said monitoring means and said register means for issuing a plurality of alarm signals, each of the alarm signals being distinctive from one another and each corresponding to a corresponding one of said threshold levels, said alarm means being further operable to issue one or more of said alarm signals as said vehicle is driven at a speed beyond a corresponding one or more of said threshold levels.
In another aspect of the present invention, there is provided a method of monitoring a motor vehicle, comprising the steps of monitoring the speed of the vehicle;
registering a plurality of speed threshold levels;
providing a plurality of alarm signal, each being distinctive and each corresponding to one of the plurality of threshold, and issuing one or more of the alarm signals as the vehicle is driven at speeds beyond a corresponding one or more of the threshold levels.
~1187677 In another aspect of the present invention, there is provided a digital vehicle monitoring device, comprising:
sensing means for sensing speed of said vehicle and converting the same to an electrical signal indicative of the speed of said vehicle;
register means for registering a number of pre-determined speed levels;
signal processing means communicating with said sensing means and said register means, for continuously comparing the speed of the said vehicle with each of the said speed levels during operation of said vehicle to determine each occurrence in which said vehicle accelerates beyond each speed level.
BRIEF DESCRIPTION OF THE DRAWINGS
Several preferred embodiments of the present invention will now be described, by way of example only, with reference to the appended drawings in which:
FIG. 1 Is a view of the dash mounted DAS Data Display of the present invention;
FIG. 2 Is a schematic view of the present invention and disposition of the anti-locklTraction System;
FIG. 3 Is a schematic view of the present invention the DAS Monitor;
FIG. 4 Is a schem~tic view of the present invention, the DAS Monitor and how it will interact with the Fuel Injection Control Unit;
~..,il ~ 7 7 FIG. 5 Is a schematic view of the present invention, the DAS Monitor and the Electronic System for Fuel Injection;
FIG. 6 Is a view of the DAS Monitor, or present invention's, data display monitor showing a graphical representation of data.
BEST MODE FOR CARRYING OUT THE rNVENTION
A motor vehicle monitoring device is shown at (1) in figure 1. As will be described, the device provides a means to monitor and track as well as to limit the speed of a vehicle if so desired. It also offers a multi-level warning system that alerts not only the driver but passengers and other drivers that the vehicle is being operated in an unsafe manner.
As will be described, the device is capable of; monitoring the number of occasions upon which certain pre-determined speeds have been exceeded as well as whether rapid acceleration or sudden braking took place. It also has a multi-level warning system that will alert the driver and vehicle occupants, as well as other drivers and law enforcement personnel that the vehicle is exceeding speed limits. The device is also capable of limiting actual vehicular speed by overriding the fuel injection system and thereby effectively keeping engine speed at idling speed until the vehicular speed falls below the pre-set speed level. This limiter feature as the other features of the device are owner programmable and adjustable.
The device may be programmed and adjusted by using a small digital keypad with LC Display (comparable in size to a small personal organizer). The features of this digital keypad and monitor include: a PIN
# for security and operation, installed software that permits the device owner to preset speed thresholds, date and time set features, clear and memory buttons etc. The LC Display monitor will allow both 2 11 ~ 7 ~ 7 7 numerical and graphic presentation of data. The computer software which forms an integral part of this digital keypad and monitor will enable the device owner to transfer data from the memory of the device to another computer such as a PC etc.
The above is accomplished by interfacing a electro-magnetic speed sensor which may be an already existing part of the vehicular ABS (Anti-lock Brake System) or Traction Control Systems. If after market inst~ tion is required by the vehicle owner, then an additional electro-magnetic speed sensor must be installed so as not to affect the original m~nl1f~cturer's warranty on the ABS system.
The already mentioned wheel speed sensor is an electro-magnetic device used to obtain vehicle speed information for an anti-lock controller.
When the wheel rotates, the sensor and an exciter (e.g. rotor or tone wheel) generate a simple AC signal. This signal is sent to the controller which analyzes the data and normally comm~n~s the anti-lock system. If the device is factory installed both the device and the ABS/Traction control systems will use the same AC signal. If inst~ tion is after market then the AC signal supplying information to the device will come from the additional sensor.
The device does not affect the operation of the existing ABS/traction Control systems whether the device is factory installed or installed after market. The above mentioned AC signal generated by the electro-magnetic speed sensor is monitored by the device, it is actually the rate of pulses from the wheel speed sensor that are monitored. On the basis of the rate of pulses emitted from the sensor, exact speed of the vehicle may be ascertained.
When a predetermined level of speed is exceeded or sudden braking ~ ~ 8 7 ~ 7 7 or rapid acceleration takes place, the software in the device stores the incident. Multiple increments of speed can be detected and the number of times each level of speed has been exceeded is stored in memory. Speed limiter capability allows the owner of device to pre-set the speed at which they wish the limiter to engage or take effect. When the pre-set speed level for limiter speed engagement has been exceeded, an audio-visual warning or caution system on the device will engage. This warning system consists of a buzzer alarm and a fl~hin~ red warning light that is part of the keypad portion of the device. This warning system is multi-level and is capable of being connected to the vehicles existing lighting and .~ign~ling systems.
Should the multi-level warnings or alarms be ignored the second phase begins with an owner pre-programmed grace period ranging from 0-5 minutes that ensues once the warning system is engaged.
Should the vehicle not decelerate to below the pre-set level of speed within the grace period, the limiter will then override the fuel injection system so that engine speed will be reduced to idling speed until vehicular speed falls below the pre-set speed level.
The device utilizes a perm~nently stored personal identification number or PIN. This PIN # provides a means of security and is required to set the predetermined speed levels engage the limiter and warning systems as well as to obtain data on occasions upon which speed levels were e~ceedç~, when the limiter was engaged and if sudden braking or rapid acceleration took place. The PIN is also required to transfer data from the device to any other computer.
Thus, the device provides a vehicle mounted monitoring, tracking or logging and speed limiter system which indicates the number of times a pre-determined speed has been exceeded and the number of times the speed limiter has been engaged. If desired, the device records the number ,,.
~ ~ 8 7 ~ 7 7 of times a plurality of pre-determined speeds are exceeded and/or limited by the device. If desired, the device may be provided with a visual display with graphic capability of the number of occasions with dates and times that pre-determined speed levels have been exceeded or that the speed limiter has been engaged.
The device is capable to transfer data about the number of occasions, dates and times that pre-determined speed increments have been exceeded or that the speed limiter has been engaged. Once data has been transferred to another computer, such as a PC, a printout may be obtained.
Thus, the device is useful to monitor driving habits such as sudden braking or rapid acceleration as well as the exceeding of pre-determined speed levels and, if necessary, to limit the speed at which a vehicle is driven. The device is operable as a multi-level warning system to the vehicle operator and occupant~ as well as other drivers or law enforcement personnel, that the operator is in violation of the pre-determined speed levels. This is in combination with multi-level audio-visual signals on the present invention, data display unit which are also activated when pre-determined speeds are exceeded, that is by way of a multi-level audio-visual warning which intçn~ifies as incremented higher pre-determined speed levels are exceeded, if necessary to other vehicle operators, pedestrians, cyclists, law enforcement officers and others that a vehicle is possibly being driven in an unsafe manner. The device is also useful, if desired, to retrieve and provide data about the vehicle operation or operator for utilization by law enforcement agencies, insurance companies, accident investigators etc, such as to monitor drivers on probationary status in the case of gr~dllated licensing or those with motor vehicle violations.
The device (1) records the number oftimes a plurality of pre-2 ~ 8 7 ~ 7 7 determined speeds are exceeded, and to provide a multi-level warning system when violations occur, as well as providing a speed limiter option.
It is mounted (Fig. 2) in the motor vehicle within the wheels (19 and 20), engine and tr~n~mi~ion (26), and drive train including drive shafts (21 and 28) The device (1) (Fig. 1) is operatively mounted under the dash of the vehicle or at some other easily accessible, convenient location. The reason being is for easy wiring and connections with other peripherals needed for data transfer and representation. If desired, the device can also be removable with provisions for connecting in, and disconnecting from the system: speed sensor (23), left and right; external speed alerts (40)(head lights, front and rear positioning lights, horn, turning signal lights);
electronic control unit for fuel injection system (41); internal speed alerts such as buzzer (16) and warning lamp (17); personal computer (30), and printer (43), which is shown on Fig. 3. Standard vehicle battery (34) supplies primary power to the device (1). This battery is connected through lines (35) and fuse (36) to micro-computer (33) with housing (1). A back up battery (37) is provided for micro-computer (33) in case the vehicle battery (34) becomes run down, disconnected or otherwise is rendered inoperative. All of the various components, mentioned above, of the device mounted externally to the unit housing can be connected by standard connectors to f~.ilit~te in~t~ tion and removal for repair or other purposes. Once the system has been operatively installed in the vehicle, and powered a set up procedure can be started. Since the microcomputer (33) has a real time clock implemented in it's software, the time and date of the manipulation can be recorded, as well as other information needed for its' proper operation, in the memory thereof.
By using (Fig. 2) either the existing Anti-lock /Traction System wiring harnesses (27) and sensing devices for in production vehicles, or ~ 2 ~ ~ 7 ~ 7 7 separately installed lines (31) for vehicles already in use or out of factory, the wheel speed sensor (20) is used to obtain vehicle speed information for the monitoring, logging and limiter means of the device (1). It is important to say that location of the speed sensors (20) depend on the location of the exciters (23) which can be part of the front or rear wheel assembly as well as on the front (21) or rear (28} drive axles. On some vehicles they are integral parts ofthe di~lenLial housing and drive axles, front (22) and rear (29). For our application we need two speed sensors located on the front or rear part of the vehicle's drive train, shown on Fig.
DIGITAL SPEED MONITORING/LOGGING, WARNING AND SPEED
LIMITER DEVICE
TECHNICAL FIELD
This invention relates to devices for monitoring the operation of a motor vehicle.
BACKGROUND ART
Soon after the invention of motorized vehicles it became apparent that excessive speeds endangered not only the vehicle operator and passengers but also surrounding persons and property. Laws concerning speed were enacted and today are applicable to all jurisdictions and across all provinces and territories in the country, as well as in Ocountries around the world. In Canada, on an annual basis more than 3400 people lose their lives in motor vehicle accidents and almost 250,000 are injured. Speed is a factor in many accidents and speeders who crash are more likely to be killed. Young, inexperienced drivers are also most likely to be killed or injured in accidents involving excessive speeds. Thus, vehicle owners and parents have a vested interest when young drivers are operating motor vehicles.
Such accidents cost the North American public billions of dollars per year in insurance and health care costs. This invention could have an impact on accident rates and insurance and health care costs, not to mention the saving of lives.
It is therefore an object of the present invention to provide a novel device for monitoring operation of a motorized vehicle. 2 1 8 7 6 7 DISCLOSURE OF THE INVENTION
Briefly stated, the invention involves a A motor vehicle monitoring device, comprising:
monitoring means for monitoring the speed of the vehicle;
register means for registering a plurality of speed threshold levels;
alarm means responsive to said monitoring means and said register means for issuing a plurality of alarm signals, each of the alarm signals being distinctive from one another and each corresponding to a corresponding one of said threshold levels, said alarm means being further operable to issue one or more of said alarm signals as said vehicle is driven at a speed beyond a corresponding one or more of said threshold levels.
In another aspect of the present invention, there is provided a method of monitoring a motor vehicle, comprising the steps of monitoring the speed of the vehicle;
registering a plurality of speed threshold levels;
providing a plurality of alarm signal, each being distinctive and each corresponding to one of the plurality of threshold, and issuing one or more of the alarm signals as the vehicle is driven at speeds beyond a corresponding one or more of the threshold levels.
~1187677 In another aspect of the present invention, there is provided a digital vehicle monitoring device, comprising:
sensing means for sensing speed of said vehicle and converting the same to an electrical signal indicative of the speed of said vehicle;
register means for registering a number of pre-determined speed levels;
signal processing means communicating with said sensing means and said register means, for continuously comparing the speed of the said vehicle with each of the said speed levels during operation of said vehicle to determine each occurrence in which said vehicle accelerates beyond each speed level.
BRIEF DESCRIPTION OF THE DRAWINGS
Several preferred embodiments of the present invention will now be described, by way of example only, with reference to the appended drawings in which:
FIG. 1 Is a view of the dash mounted DAS Data Display of the present invention;
FIG. 2 Is a schematic view of the present invention and disposition of the anti-locklTraction System;
FIG. 3 Is a schematic view of the present invention the DAS Monitor;
FIG. 4 Is a schem~tic view of the present invention, the DAS Monitor and how it will interact with the Fuel Injection Control Unit;
~..,il ~ 7 7 FIG. 5 Is a schematic view of the present invention, the DAS Monitor and the Electronic System for Fuel Injection;
FIG. 6 Is a view of the DAS Monitor, or present invention's, data display monitor showing a graphical representation of data.
BEST MODE FOR CARRYING OUT THE rNVENTION
A motor vehicle monitoring device is shown at (1) in figure 1. As will be described, the device provides a means to monitor and track as well as to limit the speed of a vehicle if so desired. It also offers a multi-level warning system that alerts not only the driver but passengers and other drivers that the vehicle is being operated in an unsafe manner.
As will be described, the device is capable of; monitoring the number of occasions upon which certain pre-determined speeds have been exceeded as well as whether rapid acceleration or sudden braking took place. It also has a multi-level warning system that will alert the driver and vehicle occupants, as well as other drivers and law enforcement personnel that the vehicle is exceeding speed limits. The device is also capable of limiting actual vehicular speed by overriding the fuel injection system and thereby effectively keeping engine speed at idling speed until the vehicular speed falls below the pre-set speed level. This limiter feature as the other features of the device are owner programmable and adjustable.
The device may be programmed and adjusted by using a small digital keypad with LC Display (comparable in size to a small personal organizer). The features of this digital keypad and monitor include: a PIN
# for security and operation, installed software that permits the device owner to preset speed thresholds, date and time set features, clear and memory buttons etc. The LC Display monitor will allow both 2 11 ~ 7 ~ 7 7 numerical and graphic presentation of data. The computer software which forms an integral part of this digital keypad and monitor will enable the device owner to transfer data from the memory of the device to another computer such as a PC etc.
The above is accomplished by interfacing a electro-magnetic speed sensor which may be an already existing part of the vehicular ABS (Anti-lock Brake System) or Traction Control Systems. If after market inst~ tion is required by the vehicle owner, then an additional electro-magnetic speed sensor must be installed so as not to affect the original m~nl1f~cturer's warranty on the ABS system.
The already mentioned wheel speed sensor is an electro-magnetic device used to obtain vehicle speed information for an anti-lock controller.
When the wheel rotates, the sensor and an exciter (e.g. rotor or tone wheel) generate a simple AC signal. This signal is sent to the controller which analyzes the data and normally comm~n~s the anti-lock system. If the device is factory installed both the device and the ABS/Traction control systems will use the same AC signal. If inst~ tion is after market then the AC signal supplying information to the device will come from the additional sensor.
The device does not affect the operation of the existing ABS/traction Control systems whether the device is factory installed or installed after market. The above mentioned AC signal generated by the electro-magnetic speed sensor is monitored by the device, it is actually the rate of pulses from the wheel speed sensor that are monitored. On the basis of the rate of pulses emitted from the sensor, exact speed of the vehicle may be ascertained.
When a predetermined level of speed is exceeded or sudden braking ~ ~ 8 7 ~ 7 7 or rapid acceleration takes place, the software in the device stores the incident. Multiple increments of speed can be detected and the number of times each level of speed has been exceeded is stored in memory. Speed limiter capability allows the owner of device to pre-set the speed at which they wish the limiter to engage or take effect. When the pre-set speed level for limiter speed engagement has been exceeded, an audio-visual warning or caution system on the device will engage. This warning system consists of a buzzer alarm and a fl~hin~ red warning light that is part of the keypad portion of the device. This warning system is multi-level and is capable of being connected to the vehicles existing lighting and .~ign~ling systems.
Should the multi-level warnings or alarms be ignored the second phase begins with an owner pre-programmed grace period ranging from 0-5 minutes that ensues once the warning system is engaged.
Should the vehicle not decelerate to below the pre-set level of speed within the grace period, the limiter will then override the fuel injection system so that engine speed will be reduced to idling speed until vehicular speed falls below the pre-set speed level.
The device utilizes a perm~nently stored personal identification number or PIN. This PIN # provides a means of security and is required to set the predetermined speed levels engage the limiter and warning systems as well as to obtain data on occasions upon which speed levels were e~ceedç~, when the limiter was engaged and if sudden braking or rapid acceleration took place. The PIN is also required to transfer data from the device to any other computer.
Thus, the device provides a vehicle mounted monitoring, tracking or logging and speed limiter system which indicates the number of times a pre-determined speed has been exceeded and the number of times the speed limiter has been engaged. If desired, the device records the number ,,.
~ ~ 8 7 ~ 7 7 of times a plurality of pre-determined speeds are exceeded and/or limited by the device. If desired, the device may be provided with a visual display with graphic capability of the number of occasions with dates and times that pre-determined speed levels have been exceeded or that the speed limiter has been engaged.
The device is capable to transfer data about the number of occasions, dates and times that pre-determined speed increments have been exceeded or that the speed limiter has been engaged. Once data has been transferred to another computer, such as a PC, a printout may be obtained.
Thus, the device is useful to monitor driving habits such as sudden braking or rapid acceleration as well as the exceeding of pre-determined speed levels and, if necessary, to limit the speed at which a vehicle is driven. The device is operable as a multi-level warning system to the vehicle operator and occupant~ as well as other drivers or law enforcement personnel, that the operator is in violation of the pre-determined speed levels. This is in combination with multi-level audio-visual signals on the present invention, data display unit which are also activated when pre-determined speeds are exceeded, that is by way of a multi-level audio-visual warning which intçn~ifies as incremented higher pre-determined speed levels are exceeded, if necessary to other vehicle operators, pedestrians, cyclists, law enforcement officers and others that a vehicle is possibly being driven in an unsafe manner. The device is also useful, if desired, to retrieve and provide data about the vehicle operation or operator for utilization by law enforcement agencies, insurance companies, accident investigators etc, such as to monitor drivers on probationary status in the case of gr~dllated licensing or those with motor vehicle violations.
The device (1) records the number oftimes a plurality of pre-2 ~ 8 7 ~ 7 7 determined speeds are exceeded, and to provide a multi-level warning system when violations occur, as well as providing a speed limiter option.
It is mounted (Fig. 2) in the motor vehicle within the wheels (19 and 20), engine and tr~n~mi~ion (26), and drive train including drive shafts (21 and 28) The device (1) (Fig. 1) is operatively mounted under the dash of the vehicle or at some other easily accessible, convenient location. The reason being is for easy wiring and connections with other peripherals needed for data transfer and representation. If desired, the device can also be removable with provisions for connecting in, and disconnecting from the system: speed sensor (23), left and right; external speed alerts (40)(head lights, front and rear positioning lights, horn, turning signal lights);
electronic control unit for fuel injection system (41); internal speed alerts such as buzzer (16) and warning lamp (17); personal computer (30), and printer (43), which is shown on Fig. 3. Standard vehicle battery (34) supplies primary power to the device (1). This battery is connected through lines (35) and fuse (36) to micro-computer (33) with housing (1). A back up battery (37) is provided for micro-computer (33) in case the vehicle battery (34) becomes run down, disconnected or otherwise is rendered inoperative. All of the various components, mentioned above, of the device mounted externally to the unit housing can be connected by standard connectors to f~.ilit~te in~t~ tion and removal for repair or other purposes. Once the system has been operatively installed in the vehicle, and powered a set up procedure can be started. Since the microcomputer (33) has a real time clock implemented in it's software, the time and date of the manipulation can be recorded, as well as other information needed for its' proper operation, in the memory thereof.
By using (Fig. 2) either the existing Anti-lock /Traction System wiring harnesses (27) and sensing devices for in production vehicles, or ~ 2 ~ ~ 7 ~ 7 7 separately installed lines (31) for vehicles already in use or out of factory, the wheel speed sensor (20) is used to obtain vehicle speed information for the monitoring, logging and limiter means of the device (1). It is important to say that location of the speed sensors (20) depend on the location of the exciters (23) which can be part of the front or rear wheel assembly as well as on the front (21) or rear (28} drive axles. On some vehicles they are integral parts ofthe di~lenLial housing and drive axles, front (22) and rear (29). For our application we need two speed sensors located on the front or rear part of the vehicle's drive train, shown on Fig.
3, for constant data acquisition, analyzing and evaluation.
When the vehicle moves, wheels rotate, the sensor (20) and the exciter (23)(e.g. rotor or tone wheel), Fig. 2, generate a simple AC signal.
This signal is sent to the ABS system controller and device (1), which analyzes the data and comm~n~s accordingly. Specifically, the speed sensor (20) consists of a coil, pole piece, and magnet. The exciter (23) is a steel ring or gear like device that has regularly spaced high and low spots called "teeth". The sensor is mounted in a fixed position, while the exciter is installed on the rotating member so that its "teeth" move, in close proximity, past the tip of the sender. Each time an exciter tooth and its adjacent space move past the tip of the sensor, an AC voltage "cycle" is generated. The number of AC cycles per revolution of the vehicle's wheel depends on the number of teeth in the exciter, which is programmed into the controller. Using the programmed data, the controller can calculate the vehicle speed by analyzing the frequency of AC cycles sent by the speed sensor . The frequency of the AC cycle is directly proportional to wheel speed. The AC voltage is also proportional to speed, but voltage is not used to determine speed. It is only an indicator of AC signal strength.
The speed sensor (WS-20 made by Bendix, Caterpillar or any other supplier) is installed in a mounting block that is fixed to the axle housing.
~7~7~
Pulses from the speed sensors (20) are fed into the micro-computer's memory. The rate ofthese pulses are monitored and upon detection of the rate of speed greater than a pre-set level, the software will store the incident along with, Fig. 1, number of incidents (15), date (12), time (11), set speed limit (10), monitored speed (9). The computer then computes other values like over-ride (8), acceleration (7), sudden braking (6),and records them all in the memory. The computer software, which controls the whole process from data acquisition to data storage and representation allows the owner to pre-set any speed level or range desired which will, then, be monitored. It also allows the owner to evaluate and manipulate the data, as well as to graphically represent them on the LCD
screen (2). An example of data representation and manipulation is illustrated on figures 1 and 6. Fig. 1 also shows the heading or title (13) and the unique serial number of the unit. It also shows the key pad (3), and connecting ports (4) which are integral parts ofthe device (1).
Figure 4 illustrates the electronic system for vehicle fuel injection which must perform two duties: it signals the start of the injection and also how long the injection stays open. The latter controls the quantity of fuel to be mixed with the air charge, so duration of injection gets longer as engine load and speed are increased. Variation in engine operating conditions requires a different air/fuel ratio, so the control unit must be fed with information from sensors positioned around the engine.
Figure 5 shows the input and output signals of the fuel injection electronic system necessary for it's proper system operation.
Commencement of injection is triggered by contacts or switches fitted in the ignition distributor.
Engine load is measured by a pressure sensor operated by the manifold depression. Working in conjunction with a switch which registers ~_f ~ ~ ~ 7 ~ 7 7 throttle position, the pressure sensor sends data to the control unit which gives the electric signal to the device ( DAS) which, after computing the vehicle speed and comparing it with pre-set speed, enables or disables the control unit to give the required electrical pulse to the injector solenoid.
The driver and owner of a vehicle can monitor his/her own driving performance as well as the performance of others driving the vehicle. This means that parents could monitor the driving habits of their children or that companies could monitor the habits of employees l1tili~ing company cars etc.
When obtaining a periodic print-out or display and memory dump of occurrence data, a special code or PIN# incorporated into the device must be used so that only authorized persons may obtain the stored information. This feature is of particular importance to vehicle owners who wish to monitor and obtain information about the driving habits of third-party drivers as well as people using the data for insurance or law enforcement purposes.
The device should be designed to be tamper proof so that the accuracy of data can be guaranteed.
From the above it can be ascertained that the present invention has the advantage of providing concerned or interested parties with unique data regarding sensed speed increment violations, sudden acceleration and/or sudden braking. The actual equipment is relatively inexpensive to produce and it is quite simple to install and use.
The present invention may, of course, be carried out in other specific ways that those herein set forth within departing from the spirit and essenti~l characteristics of the invention. The present embodiments are, :s , ~ ~ 7 ~ 7 7 therefore, to be considered as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
When the vehicle moves, wheels rotate, the sensor (20) and the exciter (23)(e.g. rotor or tone wheel), Fig. 2, generate a simple AC signal.
This signal is sent to the ABS system controller and device (1), which analyzes the data and comm~n~s accordingly. Specifically, the speed sensor (20) consists of a coil, pole piece, and magnet. The exciter (23) is a steel ring or gear like device that has regularly spaced high and low spots called "teeth". The sensor is mounted in a fixed position, while the exciter is installed on the rotating member so that its "teeth" move, in close proximity, past the tip of the sender. Each time an exciter tooth and its adjacent space move past the tip of the sensor, an AC voltage "cycle" is generated. The number of AC cycles per revolution of the vehicle's wheel depends on the number of teeth in the exciter, which is programmed into the controller. Using the programmed data, the controller can calculate the vehicle speed by analyzing the frequency of AC cycles sent by the speed sensor . The frequency of the AC cycle is directly proportional to wheel speed. The AC voltage is also proportional to speed, but voltage is not used to determine speed. It is only an indicator of AC signal strength.
The speed sensor (WS-20 made by Bendix, Caterpillar or any other supplier) is installed in a mounting block that is fixed to the axle housing.
~7~7~
Pulses from the speed sensors (20) are fed into the micro-computer's memory. The rate ofthese pulses are monitored and upon detection of the rate of speed greater than a pre-set level, the software will store the incident along with, Fig. 1, number of incidents (15), date (12), time (11), set speed limit (10), monitored speed (9). The computer then computes other values like over-ride (8), acceleration (7), sudden braking (6),and records them all in the memory. The computer software, which controls the whole process from data acquisition to data storage and representation allows the owner to pre-set any speed level or range desired which will, then, be monitored. It also allows the owner to evaluate and manipulate the data, as well as to graphically represent them on the LCD
screen (2). An example of data representation and manipulation is illustrated on figures 1 and 6. Fig. 1 also shows the heading or title (13) and the unique serial number of the unit. It also shows the key pad (3), and connecting ports (4) which are integral parts ofthe device (1).
Figure 4 illustrates the electronic system for vehicle fuel injection which must perform two duties: it signals the start of the injection and also how long the injection stays open. The latter controls the quantity of fuel to be mixed with the air charge, so duration of injection gets longer as engine load and speed are increased. Variation in engine operating conditions requires a different air/fuel ratio, so the control unit must be fed with information from sensors positioned around the engine.
Figure 5 shows the input and output signals of the fuel injection electronic system necessary for it's proper system operation.
Commencement of injection is triggered by contacts or switches fitted in the ignition distributor.
Engine load is measured by a pressure sensor operated by the manifold depression. Working in conjunction with a switch which registers ~_f ~ ~ ~ 7 ~ 7 7 throttle position, the pressure sensor sends data to the control unit which gives the electric signal to the device ( DAS) which, after computing the vehicle speed and comparing it with pre-set speed, enables or disables the control unit to give the required electrical pulse to the injector solenoid.
The driver and owner of a vehicle can monitor his/her own driving performance as well as the performance of others driving the vehicle. This means that parents could monitor the driving habits of their children or that companies could monitor the habits of employees l1tili~ing company cars etc.
When obtaining a periodic print-out or display and memory dump of occurrence data, a special code or PIN# incorporated into the device must be used so that only authorized persons may obtain the stored information. This feature is of particular importance to vehicle owners who wish to monitor and obtain information about the driving habits of third-party drivers as well as people using the data for insurance or law enforcement purposes.
The device should be designed to be tamper proof so that the accuracy of data can be guaranteed.
From the above it can be ascertained that the present invention has the advantage of providing concerned or interested parties with unique data regarding sensed speed increment violations, sudden acceleration and/or sudden braking. The actual equipment is relatively inexpensive to produce and it is quite simple to install and use.
The present invention may, of course, be carried out in other specific ways that those herein set forth within departing from the spirit and essenti~l characteristics of the invention. The present embodiments are, :s , ~ ~ 7 ~ 7 7 therefore, to be considered as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
Claims (24)
1. A motor vehicle monitoring device, comprising:
monitoring means for monitoring the speed of the vehicle;
register means for registering a plurality of speed threshold levels;
alarm means responsive to said monitoring means and said register means for issuing a plurality of alarm signals, each of the alarm signals being distinctive from one another and each corresponding to a corresponding one of said threshold levels, said alarm means being further operable to issue one or more of said alarm signals as said vehicle is driven at a speed beyond a corresponding one or more of said threshold levels.
monitoring means for monitoring the speed of the vehicle;
register means for registering a plurality of speed threshold levels;
alarm means responsive to said monitoring means and said register means for issuing a plurality of alarm signals, each of the alarm signals being distinctive from one another and each corresponding to a corresponding one of said threshold levels, said alarm means being further operable to issue one or more of said alarm signals as said vehicle is driven at a speed beyond a corresponding one or more of said threshold levels.
2. A device as defined in claim 1 wherein said register means further comprises adjustment means for adjusting said speed threshold levels.
3. A device as defined in claim 2 wherein a first of said alarm signals is directed to the interior of said vehicle.
4. A device as defined in claim 3 wherein a second of said alarm signals is directed at the exterior of said vehicle.
5. A device as defined in claim 4, further comprising speed limiting means for limiting the speed of said vehicle, wherein a third of said alarm signals is conveyed to said speed limiting means, said speed limiting means being operable to reduce the speed to below a given one of said threshold levels.
6. A device as defined in claim 5 wherein the vehicle further comprises an engine with a plurality of fuel injectors to deliver fuel thereto, said speed limiting means is operable to limit fuel output from said injectors.
7. A device as defined in claims 2, 3, 4, 5 or 6, wherein said adjustment means is operable to permit a predetermined user to adjust said threshold levels.
8. A device as defined in claims 1, wherein said monitoring means includes:
sensing means for sensing the speed of said vehicle;
signal processing means communicating with said sensing means and said register means, for continuously comparing the speed of the said vehicle with each of the said threshold levels during operation of said vehicle to determine each occurrence in which said vehicle accelerates beyond each threshold level.
sensing means for sensing the speed of said vehicle;
signal processing means communicating with said sensing means and said register means, for continuously comparing the speed of the said vehicle with each of the said threshold levels during operation of said vehicle to determine each occurrence in which said vehicle accelerates beyond each threshold level.
9. A device as defined in claim 8 wherein said signal processing means communicates with said sensing means, for continuously comparing the speed of said vehicle to determine each occurrence in which said undergoes an instance of sudden braking or rapid acceleration.
10. A device as defined in claim 9 further comprising means for retrieving such stored information from said registers whereby the cumulative incremental speed performance of said vehicle can be determined, said signal processing means further providing a means for recording the number and occasions upon which the speed limiting means is engaged.
11. A device as defined in claim 10 wherein said register means includes a number of separate registers equal to the number of preset threshold levels so that every register is independently paired with a single threshold level.
12. A device as defined in claim 11 wherein each register is incremented by said signal processing means after each incident that said vehicle speed exceeds a corresponding threshold level, thereby to store the number of times the vehicle accelerates past each threshold level.
13. A device as defined in claim 12 wherein said processing means is operable to store in said register means, instances of sudden braking or acceleration, and to retrieve stored information from said register means.
14. A device as defined in claim 13 wherein said signal processing means includes a programmed micro-computer.
15. A device as defined in claim 14 wherein said sensing means is a magnetic wheel speed sensor securable to a location near a wheel operatively connected to said micro-computer.
16. A device as defined in claim 15 wherein said micro-computer is operable to transfer vehicle operation data to a PC.
17. A device as defined in claim 16 wherein said micro-computer is operable to transfer vehicle operation data to a portable recording medium.
18. A method of monitoring a motor vehicle, comprising the steps of monitoring the speed of the vehicle;
registering a plurality of speed threshold levels;
providing a plurality of alarm signal, each being distinctive and each corresponding to one of said plurality of threshold levels, and issuing one or more of said alarm signals as said vehicle is driven at speeds beyond a corresponding one or more of said threshold levels.
registering a plurality of speed threshold levels;
providing a plurality of alarm signal, each being distinctive and each corresponding to one of said plurality of threshold levels, and issuing one or more of said alarm signals as said vehicle is driven at speeds beyond a corresponding one or more of said threshold levels.
19. A method as defined in claim 18 wherein the step of recording includes the step of adjusting said speed threshold levels.
20. A method as defined in claim 19 wherein a first of said alarm signals is directed to the interior of said vehicle.
21. A method as defined in claim device as defined in claim 20 wherein a second of said alarm signals is directed at the exterior of said vehicle.
22. A method as defined in claim 21, wherein a third of said alarm signals is operable to overide control of speed of the vehicle, in order to reduce the speed to below a given one of said threshold levels.
23. A method as defined in claims 22 wherein the third of said alarm signals is operable to override a fuel injection system in said vehicle.
24. A method as defined in claims 23, further comprising the steps of comparing the speed of the said vehicle with each of the said threshold levels during operation of said vehicle to determine each occurrence in which said vehicle accelerates beyond each threshold level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002187677A CA2187677C (en) | 1996-10-11 | 1996-10-11 | Digital vehicle speed monitoring and speed limiter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002187677A CA2187677C (en) | 1996-10-11 | 1996-10-11 | Digital vehicle speed monitoring and speed limiter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2187677A1 CA2187677A1 (en) | 1998-04-11 |
| CA2187677C true CA2187677C (en) | 1999-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002187677A Expired - Fee Related CA2187677C (en) | 1996-10-11 | 1996-10-11 | Digital vehicle speed monitoring and speed limiter device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2187677C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001038145A1 (en) * | 1999-11-24 | 2001-05-31 | Carlos Eduardo Wendler | Speed controller and limiter, with anti-theft device, for automotive vehicles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7276240B2 (en) * | 2020-04-27 | 2023-05-18 | トヨタ自動車株式会社 | Vehicle condition monitoring device |
-
1996
- 1996-10-11 CA CA002187677A patent/CA2187677C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001038145A1 (en) * | 1999-11-24 | 2001-05-31 | Carlos Eduardo Wendler | Speed controller and limiter, with anti-theft device, for automotive vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2187677A1 (en) | 1998-04-11 |
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