Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p8
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 23143–25872

in the steering transmission.
2.4.5. "Mean steering ratio" means the ratio of the angular displacement of the steering control to the mean of the swept steering angle of the steered wheels for a full lock-to-lock turn.
2.4.6. "Turning circle" means the circle within which are located the projections onto the ground plane of all the points of the vehicle, excluding the external devices for indirect vision and the front direction indicators, when the vehicle is driven in a circle.
2.4.7. "Nominal radius of steering control" means in the case of a steering wheel the shortest dimension from its centre of rotation to the outer edge of the rim. In the case of any other form of control it means the distance between its centre of rotation and the point at which the steering effort is applied. If more than one such point is provided, the one requiring the greatest effort shall be used.
2.4.8. "Remote Controlled Parking (RCP)" means an ACSF of category A, actuated by the driver, providing parking or low speed manoeuvring. The actuation is made by remote control in close proximity to the vehicle.
2.4.9. "Specified maximum RCP operating range (SRCPmax)" means the maximum distance between the nearest point of the motor vehicle and the remote control device up to which ACSF is designed to operate.
2.4.10. "Specified maximum speed Vsmax " means the maximum speed up to which an ACSF is designed to operate.
2.4.11. "Specified minimum speed Vsmin" means the minimum speed down to which an ACSF is designed to operate.
2.4.12. "Specified maximum lateral acceleration aysmax" means the maximum lateral acceleration of the vehicle up to which an ACSF is designed to operate.
2.4.13. An ACSF is in "off mode" (or "switched off") when the function is prevented from generating a steering control action to assist the driver.
2.4.14. An ACSF is in "standby mode" when the function is switched on, but the conditions (e.g. system operating conditions, deliberate action from driver) for being active are not all met. In this mode, the system is not ready to generate a steering control action to assist the driver.
2.4.15. An ACSF is in "active mode" (or "active") when the function is switched on and the conditions for being active are met. In this mode, the system continuously or discontinuously controls the steering system is generating, or is ready to generate, a steering control action to assist the driver.
2.5. Types of steering equipment
 Depending on the way the steering forces are produced, the following types of equipment are distinguished:
2.5.1. For motor vehicles:
2.5.1.1. "Main steering system" means the steering equipment of a vehicle which is mainly responsible for determining the direction of travel. It