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GPS速度計 実車試験の概要

Our GPS speedometer supports various vehicle tests with a wealth of testing features. It can display and save test results calculated using formulas specified by regulations. In addition to time-series data, it is also possible to save in report format.

Normal measurement (standard function)

Normal measurement (standard function)

Measurements of speed, distance, and elapsed time will be conducted from the start to the end.

Interval Measurement Test (Standard Function)

Interval Measurement Test (Standard Function)

Values such as maximum horizontal speed, minimum horizontal speed, average horizontal speed, horizontal distance traveled, and elapsed time are measured during the interval from the start of measurement (GATE ON) to the end (GATE OFF).

accelerated testing

necessary options Main Unit Test Mode LC-0827 Main Body Acceleration Testing Function
  PC Test Mode LC-0831 acceleration and deceleration test software

Launch acceleration

This is a test to measure the instantaneous speed / travel distance / elapsed time / interval acceleration at specified steps from the start of the test (0 km/h start) until reaching 100 km/h* 1 or until reaching the points of 400 m or 1000 m* 2.

* 1 It is also possible to set the speed arbitrarily
* 2 It is also possible to set the distance arbitrarily

  • Launch acceleration

Overtaking acceleration

The test begins from a steady driving state, where the accelerator is pressed to start acceleration, reaching a predetermined speed or starting the test at the point where a white line is crossed. Furthermore, the accelerator is kept pressed, and the time taken for the vehicle to reach the predetermined speed or the specified distance is measured.

  • Overtaking acceleration
  • Record elapsed time and acceleration per speed step or distance step.

braking test

necessary options Main Unit Test Mode LC-0828N Main Unit Braking Test Function
  PC Test Mode LC-0831 acceleration and deceleration test software

The fade test is available as a custom service.

MFDD

This is a testing mode for braking evaluation corresponding to the MFDD (Mean Saturation Deceleration) standard. It measures the braking distance, braking time, and MFDD from the start of braking until the vehicle stops.

  • MFDD
    MFDD

ABS Wet Grip

Measures the instantaneous speed / distance traveled (braking distance) / elapsed time (braking time) / interval deceleration for specific steps from the start of braking to vehicle stop.
ABS calculates the maximum deceleration (Z), while wet grip calculates the average deceleration (AD).
* Wet grip is only supported in PC test mode (using LC-0831 acceleration and deceleration test software).

  • ABS Wet Grip

Fade Test (Custom Order Support)

This is a test to evaluate braking performance at high temperatures by repeatedly applying and releasing the braking system to induce fade. During the heating procedure, the average saturation deceleration (MFDD) is calculated each time the speed decreases from the initial braking speed v1 to the final braking speed v2. The measurement concludes when the vehicle decelerates from the specified test speed v to a stop, at which point the braking distance and MFDD are calculated.

  • fade test

Coasting Test

necessary options Main Unit Test Mode LC-0829N
 Main Body Coasting Test Function
  PC Test Mode LC-0831 acceleration and deceleration test software

*LC-0873 To conduct a coasting test in combination with the wireless communication unit, the LC-0837 coasting test software is required.

This is a test to measure the coasting performance of a vehicle, from the moment the foot is removed from the accelerator and the gear is shifted to neutral, until the coasting time or coasting coefficient, average speed over the section, and distance traveled are reached, or until the STOP button is operated.

  • Coasting Test

fuel efficiency test

necessary options PC Test Mode
 LC-0832 fuel economy testing software

constant speed fuel consumption

This is a test to measure fuel consumption rate while the vehicle is running at a constant speed on a horizontal straight road.
The fixed fuel economy test allows for the collection of measurement results such as distance traveled / elapsed time / average speed / cumulative fuel consumption / cumulative fuel consumption rate for each distance step or time step after the measurement begins.

pattern fuel efficiency

This is a fuel efficiency test mode that calculates the measurement values of distance / time / segment average speed / segment fuel flow / segment fuel economy / average speed / fuel flow / fuel economy for each section against various driving patterns.
For example, if one lap of the test course is considered as one segment and a pattern fuel efficiency test is conducted, measurement results such as fuel consumption rates per lap and total fuel consumption rates for all laps can be obtained.

  • Example of System Configuration for Fuel Economy Testing

Orbital Analysis

necessary options PC Test Mode
 LC-0833
 track display software
Measurement of travel trajectory

Measurement of travel trajectory

Measure the vehicle's travel trajectory from the start to the stop of the measurement, and plot the results as a relative travel trajectory on a graph.

Calculation of lateral flow rate.

Renewal

Measurement of vehicle deviation amount and yaw angle change amount

It measures, displays, and saves the amount of deviation (lateral flow) and the change in yaw angle (vehicle tilt angle) from the start to the end of the measurement period (including stopping).

Measurement of Minimum Turning Radius

Renewal

Measurement of Minimum Turning Radius

It calculates an approximate circle (least squares circle) from the travel trajectory and automatically computes the radius.
It eliminates the hassle of measuring with a tape measure on the test course or manually reading values from the travel data.

最終更新日:2025/07/02