A weight sensing assembly for a semi-trailer truck enabling balancing of a load includes a sensing module, which is one of a plurality thereof. The sensing modules are mountable to wheels of the semi-trailer truck so that each axle has a sensing module engaged to outside wheels thereof. The sensing module obtains a pressure measurement of a tire engaged to the wheel and transmits it to an electronic device. Programming code on the electronic device enables it to utilize a pressure changes, upon positioning of a load upon the semi-trailer truck, to determine a weight that is positioned upon an associated axle. The electronic device calculates adjustments to positions of a sliding fifth wheel and of sliding tandems of the semi-trailer truck to obtain positions thereof that will achieve a legal weight distribution of the load. The electronic device presents, upon a screen thereof, the adjustments to a user.

A method for estimating damping characteristics of shock absorbers in an active or semi-active suspension involves providing a reference model of a nominal relation between a road severity index related to vertical acceleration values, and the mean driving current of the control valves of the shock absorbers, acquiring respective relative acceleration or speed data of at least the front wheels of the vehicle with respect to the vehicle body, determining a value of the road severity index starting from relative acceleration or speed data of the front wheels of the vehicle with respect to the vehicle body, acquiring values representative of the mean driving current of the control valve of each shock absorber, comparing acquired value of the mean driving current with an expected value of the nominal mean driving current determined as a function of the road severity index according to the reference model, and determining a degradation condition if the acquired value does not correspond to the expected value.

A vehicle height adjusting apparatus according to one aspect includes: a vehicle height adjusting member that adjusts height of a seat of a saddle-type vehicle, using hydraulic pressure; an oil supplying portion that supplies oil to the vehicle height adjusting member, using a motor; and a control section that estimates a load applied to the vehicle height adjusting member, from a current supplied to the motor and a stroke correspondence quantity of the vehicle height adjusting member, and controls the oil supplying portion based on the load to adjust the height of the seat.

provided is an information processing device comprising: a map database in which a control parameter for controlling the behavior of the vehicle is recorded for each vehicle type at each point on a road; a data reading unit that acquires vehicle information including at least vehicle type information and positional information of the vehicle and reads the control parameter corresponding to the travel point of the vehicle from the map database based on the vehicle information; a parameter setting unit that sets an application control parameter to be applied to control of the vehicle based on the control parameter read by the data reading unit; and a data update unit that acquires an observation value related to the behavior of the vehicle controlled based on the application control parameter from the vehicle and updates the map database based on the observation value.

A method for determining a contact force on a utility vehicle includes providing the utility vehicle with a first wheel axle and a second wheel axle, determining a drive slip of the second wheel axle, and a road surface-specific determination data set associated with a traction coefficient in dependence on the drive slip, and determining the contact force on the second wheel axle based on the drive slip of the second wheel axle and the road surface-specific determination data set.

The present disclosure relates to a method and an apparatus for controlling an electronic control suspension using a deep learning-based road surface classification model. The method for controlling an electronic control suspension in a vehicle including a camera and a GPS receiver may include collecting location information of the vehicle using the GPS receiver while driving, identifying whether there is a previously generated road surface classification model corresponding to a front obstacle when the front obstacle is detected, determining a first control value based on a first characteristic value corresponding to the road surface classification model when there is the road surface classification model as a result of the identification, controlling the electronic control suspension with the determined first control value when entering the obstacle, and collecting new sensing data through a physical sensor, and correcting the first characteristic value based on the new sensing data.

The present invention relates to a method for determining aging of a vehicle suspension arrangement (100) arranged between a frame and a wheel axle of a vehicle, said suspension arrangement (100) comprising a flexible bellows (102) for damping motions from said wheel axle, the method comprising the steps of determining a distance moved by a portion of the flexible bellows (102) when the suspension arrangement is exposed to an external load; determining a gas pressure level within said flexible bellows (102) when the portion of said flexible bellows (102) has moved said distance; determining a relationship between the determined gas pressure level within said flexible bellows and said distance moved by the portion of the flexible bellows; comparing the relationship with a predetermined threshold level; and determining that said flexible bellows is aged if a difference between the relationship and the predetermined threshold level is outside a predetermined threshold range.

A suspension system includes a spring assembly including a gas spring and an accumulator, and a controller. The accumulator is coupled to the gas spring and includes a bladder. The accumulator has a compressed state and an uncompressed state. The controller is configured to a) determine a target amount of gas in the spring assembly and b) adjust the amount of gas in the spring assembly towards the target amount of gas based on a pressure difference across the bladder.

Example methods and systems for optimizing vehicle ride performance are disclosed herein. An example apparatus includes a calculator to calculate a vertical velocity of a vehicle wheel and a comparer to perform a comparison of the vertical velocity to a threshold. The example apparatus includes a damping force manager to determine a damping force to be generated by a vehicle suspension system based on the comparison and a communicator to transmit a request including the damping force to be generated to the vehicle suspension system.

The present invention relates to a method for determining a desired speed of a vehicle (1), preferably an autonomous vehicle. The vehicle comprises a shock absorber arrangement (2), preferably an hydraulic shock absorber arrangement, having an elastic hysteresis. The method comprisesobtaining (501) a reference value indicative of the energy dissipated by the shock absorber arrangement (2) in a reference driving condition of a vehicle anddetermining (502) a speed of the vehicle for which the value indicative of the energy dissipated by the shock absorber arrangement (2) in a similar driving condition is expected to fall within a predetermined energy dissipation range, using said reference value.