De Coninck Stoptronic User Manual

Contents

1. INTRODUCTION 2

2. OBJECTIVES 3

3. ASSEMBLY 4

4. PREPARATION 6

5. GENERAL INFORMATION

6. STOPTRONIC USE 7

6.1 Common manoeuvres 7

6.2 Braking deceleration 8

6.3 Braking distance and stopping distance 9

7. BRAKING 10

7.1 Emergency stop 11

7.2 Braking distance formula 11

7.3 Emergency stop (dry road surface) 1

7.4 Emergency stop (wet road surface) 1

8. NOTES 14

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1. IntRoDUCtIon

The STOPTRONIC® provides insight into the acceleration, deceleration, braking and stopping of a vehicle and this has a positive inuence on the driving behaviour. Through the use of the STOPTRONIC®, the driver is able to better anticipate trafc situations which, in turn, improves road safety.

The STOPTRONIC® not only improves trafc safety. By avoiding unnecessary acceleration and deceleration, the fuel consumption is greatly decreased, which is not only benecial to the environment, but also saves the driver a great deal of money.

2. oBJeCtIVes

The STOPTRONIC® has been developed to give drivers insight into the dynamics of acceleration and braking deceleration, as well as braking and stopping distances. The STOPTRONIC® helps drivers to develop a good feeling for braking by displaying a veriable representation of the braking behaviour.

With the aid of the STOPTRONIC®, the driver will:

Improve his/her road observation and start to look further ahead.

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Learn to brake appropriately and more safely.

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Learn to estimate the stopping distance of his/her vehicle.

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Learn to estimate the speed of other vehicles.

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Keep a safe distance from the car in front.

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Be able to make a safe emergency stop.

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Learn to use the clutch, gears and accelerator pedal more smoothly.

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Change gear at the right time, which prevents high fuel consumption

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and (unnecessary) wear to the vehicle.

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3. AsseMBLY

The STOPTRONIC® can be easily tted to the Brodit ProClip using the MoveClip provided (see the diagram below).

Return the completed voucher and receive the assembly bracket specic to your vehicle.

Use the cloth provided to remove any grease from the areas on the rear of the STOPTRONIC® and the ProClip and wait until these areas are dry. Remove the protective strips from the MoveClip (which consists of two parts) and press them rmly into place on both the STOPTRONIC® and the ProClip.

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note!

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The MoveClip is conical. Therefore, stick part 1 to the ProClip and part 2 to the rear of the STOPTRONIC®, as shown below.

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4. PRePARAtIon

Use the spirit level provided to level the recording sensor (X) and point it in the driving direction.

Next, connect the STOPTRONIC® to the cigarette lighter. The STOPTRONIC® can also be connected directly to the 12 V cabling. If the STOPTRONIC® is connected to the 12 V cabling, make sure it is turned on via the ignition to prevent it from always being turned on.

The button (1) must be pressed briey to zero the displays. The STOPTRONIC® is now ready for use.

5. GeneRAL InFoRMAtIon

The STOPTRONIC® has two displays. The left-hand display shows the current acceleration and deceleration and the right-hand display shows the highest measured value. By briey pressing button (2), the right-hand display will show the acceleration or deceleration (-). If this button is kept pressed, the lighting is dimmed. Button (3) zeros the highest measured value.

The “Driving Procedure” must always be observed when pulling away, decelerating, braking and stopping.

6. stoPtRonIC Use

6.1 Common manoeuvres

The following values must be assumed in order to drive as safely and as economically as possible.

manoeuvre maximum STOPTRONIC® value

pulling away 2 m/s²

changing up gear 0 m/s²

braking within a built-up area -2 m/s²

braking outside a built-up area -4 m/s²

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6.2 Braking deceleration

The speed that the vehicle decreases per second when braking is called the braking deceleration. The braking deceleration is expressed in m/sec².

The minimum legal braking deceleration is not the same for every vehicle. A number of examples from the Dutch vehicle regulations are given below:

Passenger car: 5.2 m/sec².

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Commercial car built before 1/1/1998: 4.0 m/sec².

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Commercial vehicle built on or after 1/1/1998: 4.5 m/sec². Coach: 4.5 m/sec².

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Motorcycle built before 1/4/1998: 4.5 m/sec².

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Motorcycle built on or after 1/4/1998: 5.2 m/sec² (with both brakes).

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See the vehicle regulations applicable to your country for the minimum legal braking deceleration. In practice, assuming ideal conditions, such as a dry road surface, good suspension, good tyres and good brakes, vehicles can achieve a much higher braking deceleration than the minimum specied value. Under these ideal circumstances, a braking deceleration of between 8 and 10 m/sec² can be achieved.

For lorries, this maximum value is between 6 and 8 m/sec², depending on the type of braking system.

6.3 Braking distance and stopping distance

The stopping distance is the braking distance plus the distance travelled during the reaction time. An average reaction time of 1 second is usually assumed, although scientic studies give the following statistics:

A reaction time of 0.4 sec. is achieved by 2% of drivers.

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A reaction time of 0.83 sec. is achieved by 98% of drivers.

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The reaction time consists of a physical reaction by the driver of 0.8 seconds (observation – recognizing danger – moving foot until the braking action begins) and a time of 0.2 seconds for the braking system to reach full pressure (differs for each braking system).

Due to the pneumatic braking system of lorries, the time it takes the braking system to reach full pressure is usually slightly longer. As a result, the stopping distance is also longer.

The braking distance for a motorcycle is, in principle, the same as that for a passenger car. In the event of an emergency stop, though, there is a chance that the front or rear wheel will lock and this can lead to a fall.

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7. BRAKInG

Whilst braking, the driver must not change down gears, both hands must be on the steering wheel and the clutch should not be operated.

The clutch pedal should only be operated just before coming to a standstill to prevent the engine from stalling.

Whilst braking, the deceleration will slowly be increased to the following values:

2 m/sec² - 4 m/sec² - 6 m/sec² - 8 m/sec².

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By slowly releasing the brake before the vehicle comes to a complete standstill, less force will be placed on the vehicle’s suspension and a nal jolt will be avoided.

7.1 Emergency stop

A driver must be able to brake as described previously in “Braking” before attempting an emergency stop.

During an emergency stop, the clutch pedal must be operated simultaneously with the brake pedal. This will prevent the engine from stalling and, as a result, the ABS and the power steering system will also remain operational.

If the vehicle does not have ABS, then the vehicle must be braked until just before the wheels lock. This is achieved by braking forcefully and, once the wheels lock, slowly releasing the brakes until the wheels start to roll again. This will produce the shortest braking distance and the vehicle will remain steerable.

7.2 Braking distance formula

The braking distance (S) depends on the speed (V) and the deceleration (A). The formula for calculating the braking distance is:

S = V² / 2 x A

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The speed must be converted to m/sec. To do so, the speed in km/h must be divided by 3.6. Example: 36 km/h divided by 3.6 is 10 m/sec.

The result (S) is the braking distance in metres.

A number of distances are given in the tables below.

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7.3 Emergency stop (dry road surface)

Emergency stop with a braking deceleration of -8 M/S²

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speed braking

distance (m)

10 km/h = 2.78 m/s 0.48 m 2.78 m 3.26 m 30 km/h = 8.33 m/s 4.34 m 8.33 m 12.67 m

50 km/h =

70 km/h = 19.44 m/s 23.62 m 19.44 m 43.06 m

80 km/h =

90 km/h = 25 m/s 39.06 m 25 m 64.06 m

100 km/h = 27.78 m/s 48.23 m 27.78 m 76.01 m

120 km/h =

13.89 m/s

22.22 m/s

33.33 m/s

12.06 m 13.89 m 25.95 m

30.86 m 22.22 m 53.08 m

69.43 m 33.33 m 102.76 m

distance for

a reaction

time of 1 sec.

stopping

distance (m)

7.4 Emergency stop (wet road surface)

Emergency stop with a braking deceleration of -5 M/S²

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speed braking

distance (m)

10 km/h = 2.78 m/s 0.77 m 2.78 m 3.55 m 30 km/h = 8.33 m/s 6.94 m 8.33 m 15.27 m

50 km/h =

70 km/h = 19.44 m/s 37.79 m 19.44 m 57.23 m

80 km/h =

90 km/h = 25 m/s 62.50 m 25 m 87.50 m

100 km/h = 27.78 m/s 77.17 m 27.78 m 104.95 m

120 km/h =

13.89 m/s

22.22 m/s

33.33 m/s

19.92 m 13.89 m 33.81 m

49.37 m 22.22 m 71.59 m

111.09 m 33.33 m 144.42 m

distance for

a reaction

time of 1 sec.

stopping

distance (m)

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8. notes

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De Coninck Stoptronic User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. IntRoDUCtIon

2. oBJeCtIVes

3. AsseMBLY

4. PRePARAtIon

5. GeneRAL InFoRMAtIon

6. stoPtRonIC Use

6.1 Common manoeuvres

6.2 Braking deceleration

6.3 Braking distance and stopping distance

7. BRAKInG

7.1 Emergency stop

7.2 Braking distance formula

7.3 Emergency stop (dry road surface)

7.4 Emergency stop (wet road surface)

8. notes