YTWL_CA100F Ethiopia Standard GPS Speed Limiter for Mechanical
Throttle
1. Speed limiter/governor Device
a device whose primary function is to control feed to the engine in
order to limit the vehicle speed to the specified value. The
purpose of the Speed limiter device is to limit the maximum road
speed for vehicles to a specified value without affecting the other
performance parameters of the vehicle in any manner.
2.Speed limiter/governor Scope
The Ethiopia speed limiter standard specifies the requirements for
the performance, installation and test methods of the GPS
integrated speed limiter device designed to limit the maximum road
speed of motor vehicles by control of engine power.This standard
also specifies performance requirements of speed recording and
reporting devices. These shall be a separate unit to be installed
on the vehicle.NOTE: Permitted tolerances of the system may allow
the vehicle to exceed the set speed.
3 GPS Model of speed Limiter Specifications
Dim. | 87 * 57 * 25 (mm) |
Band | 900/1800/1900MHz or 850/900/1800/1900MHz |
Time To First Fix | Reacquisition 0.1s Cold status 45s Warm status 35s Hot status 1s |
Storage Temp. | -40°C to +85°C |
Operation Temp. | -20°C to +70°C |
Battery | Chargeable changeable 3.7V / 1.2Ah Li-ion battery |
4. Speed Limiter Requirements
YTWL_CA100F Ethiopia Standard GPS Speed Limiter for Mechanical
Throttle
- Speed limiter devices shall have a built in / integrated GPS;
- he speed limiter function shall be obtained once the vehicle speed
reaches the set maximum speed regardless of the position action on
the accelerator a driver may apply;
- Speed limiter devices shall be calibrated and maintained in a good
working order and capable to limit the speed of a vehicle at the
set speed as stipulated by the regulatory body;
- When the vehicle, running at its set speed and with the driver's
accelerator at its position of maximum travel, is subject to an
accelerating force due to a down gradient,the limiter shall control
speed by restricting the engine power to the limiter's minimum
engine power control setting; - The speed limiter device systems shall be "failsafe" in such a way
that if the plug/s to the electronic controller is/are removed,
power is disconnected or if the speed signal and/or wire is
disconnected the vehicle shall automatically, default to a limp
mode or the engine shall stall or return to idle or, at least, and
thus shall not be able to be driven in excess of thirty kilometers
per hour. (30km/h);
- The input speed signal shall be obtained from global navigating
system (GNS) or speedometer vehicle speed signal or a converted
speed signal from vehicle gearbox or from other separately
installed sensor as deemed appropriate.
YTWL_CA100F Ethiopia Standard GPS Speed Limiter for Mechanical
Throttle
- The road speed limiting device shall have in built features that
allow functionality checks and shall have special inspection
devices for this purpose to facilitate the checking when the
vehicle is not in motion ;
- The speed limiter function or the road speed limiter shall not
cause uncontrolled engine power;
- Speed limiter devices shall be so constructed that the vehicle may
not be accelerated by the operation of the acceleration devices,
such as the accelerator pedal, when the vehicle is running at its
set speed
- The speed limiter function shall be independent of the condition or
soundness of the speedometer.
5. Technical Parameters:
YTWL_CA100F Ethiopia Standard GPS Speed Limiter for Mechanical
Throttle
Item | Parameters |
Overall Size | 20.0 X 9.2 X 4.5 CM |
Host Net Weight | 0.4 KG |
Processing chip | STC |
Speed Limiting Zone | 20-200 Km/H |
Speed Limiting Deviation | ±5Km/H |
Mechanical Bearing Capacity | 400N |
Working Voltage | 9-36 V |
Rated Power Consumption | <0.3 W |
Working Current | <60 mA |