Speed adjusting system, control, unit for such a system and method for adjusting the speed of a vehicle

A control unit for adjusting the speed of a vehicle, comprising

• a first arm which is turnable by operation of an accelerator,
• a second turnable arm, and
• a third arm turnable with the aid of a drive,
• the first arm being spring loaded so that, for turning thereof, a first force must be applied thereto, and
• the second arm being spring loaded in such manner that, for turning thereof, a second force must be applied thereto,
• the first arm, after turning through an angle, being arranged for engagement with and turning of the second arm such that turning of the second arm by operating the accelerator requires application to the first arm of a force corresponding to the sum of the first force and the second force,
• the third arm being adapted to turn and engage with and turn the second arm and
• the drive being adapted to turn the third arm such that, when the third arm turns the second arm, an angle between the first arm and the second arm is maintained during turning of the first arm.

A method for adjusting the speed of a vehicle, comprising the steps of

• providing speed adjusting means of a vehicle, the speed adjusting means being adapted to resist adjustment with a first force when the vehicle is operated at a speed no faster than a first speed and the speed adjusting means being adapted to resist adjustment with a second force greater than the first force when the vehicle is operated at a speed above the first speed;
• adjusting the speed adjusting means by operating an accelerator;
• counteracting a difference between the first force and the second force when the speed of the vehicle is no faster than the first speed;
• and
• ceasing to counteract the difference between the first force and the second force when the speed of the vehicle exceeds the first speed.