Abstract: A method (400) and a control unit (310) in a vehicle (100) having an ACC system (500) for adjusting a variable time gap (t) to be kept to a preceding vehicle (110), based on a road slope (?). In the method (400): determining (401) geographical position of the vehicle (100); determining (402) driving direction (105) of the vehicle (100); determining (403) the road slope (?) of the road (120) in front of the vehicle (100) in the determined (402) driving direction (105); and adjusting (408) the variable time gap (t) based on the determined (403) road slope (?) of the road (120) in front of the vehicle (100) by: increasing the variable time gap (t) when the road slope (?) is negative, indicating downhill; or decreasing the variable time gap (t) when the road slope (?) is positive, indicating uphill.

Abstract: A method (400) and a control unit (310) in a vehicle (100) having an ACC system (500) for adjusting a variable time gap (t) to be kept to a preceding vehicle (110), based on a road slope (?). In the method (400): determining (401) geographical position of the vehicle (100); determining (402) driving direction (105) of the vehicle (100); determining (403) the road slope (?) of the road (120) in front of the vehicle (100) in the determined (402) driving direction (105); and adjusting (408) the variable time gap (t) based on the determined (403) road slope (?) of the road (120) in front of the vehicle (100) by: increasing the variable time gap (t) when the road slope (?) is negative, indicating downhill; or decreasing the variable time gap (t) when the road slope (?) is positive, indicating uphill.

Abstract: A method for assessing accident risks to a moving vehicle (100; 110) includes continuously monitoring (s410) a surroundings configuration while the vehicle (100; 110) is in motion, continuously determining (s420) running characteristics for the vehicle (100; 110), continuously registering (s430) the surroundings configuration in order to create and provide an idea about chosen characteristics of the surroundings passed by the vehicle using the running characteristics and the idea as a basis for assessing (s440) accident risks related to the surroundings passed by the vehicle (100; 110). Also a computer program product includes program code (P) for a computer (200; 210) for implementing the method. Also the device and a vehicle equipped with the device.

Abstract: A method for assessing accident risks to a moving vehicle (100; 110) includes continuously monitoring (s410) a surroundings configuration while the vehicle (100; 110) is in motion, continuously determining (s420) running characteristics for the vehicle (100; 110), continuously registering (s430) the surroundings configuration in order to create and provide an idea about chosen characteristics of the surroundings passed by the vehicle using the running characteristics and the idea as a basis for assessing (s440) accident risks related to the surroundings passed by the vehicle (100; 110). Also a computer program product includes program code (P) for a computer (200; 210) for implementing the method. Also the device and a vehicle equipped with the device.