About g-force

Gravitational force (g-force) is a measure of acceleration and deacceleration based on the values for the x, y, and z axes. When a vehicle accelerates quickly or turns suddenly, more g-force is felt. A higher g-force can indicate risky driving.

There are three g-force events:

  • G-sensor regular - the g-force of the vehicle is higher than it should be

  • G-sensor high - the g-force of the vehicle is higher than it should be, and is even higher than the level that triggers a g-sensor normal event

  • Possible accident - the g-force of the vehicle is very high, indicating a possible collision

The thresholds for these events are described in the following table:

Event

Vehicle

X-axis value

Y-axis value

Z-axis value

G-sensor regular

Private vehicle

750

750

2000

Van

950

950

2000

Trailer

1150

1150

2000

G-sensor high

Private vehicle

1050

1050

2300

Van

1200

1200

2300

Trailer

1450

1450

2000

Possible accident

Private vehicle, van, trailer

2500

2500

2500

Note

The X, Y, and Z-axes values represent the following measurements:

Axis

Positive value

Negative value

X

Acceleration

Deceleration

Y

Left

Right

Z

Up

Down

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