Method for the adaptive determination of a maximum load of a particularly autonomously driving vehicle, computer program product, device and vehicle

Abstract

The invention relates to a method for the adaptive determination of a maximum load (17) of a vehicle (1), in particular an autonomously driving vehicle, comprising the following steps: determining the permissible maximum speed (13) in the current operating range (15) of the vehicle (1), in particular via map and route data from a control unit (14) of the vehicle (1); determining the maximum permissible load on components of the chassis of the vehicle (1); determining the maximum permissible load (17) of the vehicle (1) on the basis of the permissible maximum speed (13) and permissible wheel loads (8); transmitting the maximum permissible load (17) of the vehicle (1) to a vehicle control system (16).

Claims

[1] Method for the adaptive determination of a maximum load (17) of a particularly autonomously driving vehicle (1), comprising the following steps: - Determination of the permissible maximum speed (13) in the current operating range (15) of the vehicle (1), in particular via map and route data of a control unit (14) of the vehicle (1); - Determination of the maximum permissible load on components of the vehicle's chassis (1); - Determination of the maximum permissible load (17) of the vehicle (1) on the basis of the maximum permissible speed (13) and permissible wheel loads (8); - transmission of the maximum permissible load (17) of the vehicle (1) to a vehicle control system (16); [2] Method according to claim 1, characterized by that the maximum permissible load (17) is adjusted when the vehicle (1) is in a zone with a reduced permissible maximum speed (13). [3] Method according to claim 1 or 2, characterized by that the procedure additionally includes the following steps: - bringing the vehicle (1) to a standstill; - opening at least one passenger door (2) to allow persons to leave the vehicle (1) and / or to enter the vehicle (1), and / or opening at least one luggage door (3) to allow luggage to be removed from the vehicle (1) and / or luggage to be stored in the vehicle (1); - Closing the passenger door (2) and / or the luggage door (3); - Determination of the wheel load (6) acting on each vehicle wheel (4); - Comparison of the wheel loads (6) with permissible wheel loads (8) stored in a control unit (5), whereby ◯ In the event that the wheel loads (6) are smaller than the permissible wheel loads (8), a first maximum speed (9) is determined and transmitted as a speed limit value (20) to a vehicle control system (11), and ◯ In the event that the wheel loads (6) are greater than the permissible wheel loads (8), a second maximum speed (10) is determined which is lower than the first maximum speed (9) and the second maximum speed (10) is transmitted to a vehicle control (11) as a speed limit value (20); - Putting the vehicle (1) into a driving state. [4] Method according to claim 3, characterized by , that - the inclination of the vehicle (1) is determined; and - a conversion of the inclination-dependent wheel loads (6) of the vehicle (1) to wheel loads (7) standardised in a horizontal spatial plane; and - a comparison of the standardized wheel loads (7) with permissible wheel loads (8) stored in a control unit (5), whereby ◯ in the event that the standardised wheel loads (7) are smaller than the permissible wheel loads (8), a first maximum speed (9) is determined and transmitted to the vehicle control system (11) as a speed limit value, and ◯ in the event that the standardized wheel loads (7) are greater than the permissible wheel loads (8), a second maximum speed (10) is determined which is lower than the first maximum speed (9) and the second maximum speed (10) is transmitted to the vehicle control (11). [5] Method according to claim 3 or 4, characterized bythat the wheel load (6) acting on a vehicle wheel (4) is determined via the deflection of a chassis spring and / or the forces in an air suspension of the vehicle (1) and / or an interior monitoring of the vehicle (1) and / or an estimation of the weight based on camera recordings. [6] Method according to one of the preceding claims, characterized by that the monitoring and control of the method is carried out at least partially by a control unit (18) in the vehicle and / or at least partially by a connected cloud (12). [7] Method according to one of claims 3-6, characterized by that the first maximum speed is less than or equal to 100 km / h, preferably less than or equal to 80 km / h. [8] A computer program product stored on a machine-readable carrier or a computer data signal embodied by an electromagnetic wave, comprising a computer program code suitable for carrying out a method according to any one of claims 1-7. [9] Device (5,18) arranged to carry out a method according to one of the preceding claims 1-7. [10] Vehicle (1), comprising a device according to claim 9 and a device arranged to determine the wheel load (6) acting on a vehicle wheel (4).

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