Patent classifications
B60G2400/20
METHOD AND APPARATUS FOR OUTPUT SATURATION AVOIDANCE IN PREVIEW-BASED VEHICLE SYSTEM CONTROL
Methods related to the control of vehicle systems while a vehicle is traveling along a road surface are disclosed. In some implementations, data related to the road surface ahead of the vehicle is separated into first and second frequency ranges. Commands for a vehicle system may then be determined for the different frequency ranges and the vehicle system may be controlled based at least in part on the separate commands for the separate frequency ranges. This may include determining a combined system command based at least in part on the separate commands for the separate frequency ranges in some implementations.
System for minimizing data transmission latency between a sensor and a suspension controller of a vehicle
A system for minimizing data transmission latency between a sensor and a suspension controller of a vehicle is described. The system includes: a state determination module that determines a physical state of the vehicle; a plurality of data paths for transmitting a first signal from the sensor to the suspension controller; a data path configurator of the controller that selects a first data path of the plurality of data paths based on at least one characteristic of the first data path and the physical state and configures the first data path to transmit the first signal; and an actuation module that generates an actuation signal to control a damping characteristic of the suspension actuator based on at least the first signal.
SYSTEM AND METHOD FOR DETECTING VIBRATIONS ON AN AUTOMOTIVE VEHICLE, AND AUTOMOTIVE VEHICLE COMPRISING SUCH SYSTEM
System for detecting vibrations in an automotive vehicle, comprising, suitable to be mounted on board of the automotive vehicle: a controller, at least one sensor which transmits to the controller first signals indicative of vibrations possibly present onboard the automotive vehicle, and at least one speed sensor which transmits to the controller second signals indicative of values of the angular velocity of the rotating driveshaft of the automotive vehicle. The controller is configured to: convert in the frequency domain the first and second signals received into respective first and second frequency values, compare the first frequency values representing the converted possible vibrations onboard the automotive vehicle with the second frequency values representing the converted angular velocity values of the rotating driveshaft, and diagnose the presence of detected vibrations caused by the driveshaft when the first frequency value(s) is a harmonic of a corresponding one frequency of the second frequency values.
Vehicle ramp angle control
A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: detect (1004) a ramp (202) approached by an overhang of the vehicle; and in dependence on detecting the ramp, control (1020) the active suspension system to modify a relative ride height between a leading ride height at a set of leading wheels (FL, FR) of the vehicle and a trailing ride height at a set of trailing wheels (RL, RR) of the vehicle, to increase a ramp angle (, ) of the vehicle relative to the ramp.
SUSPENSION CONTROL DEVICE AND CONTROL METHOD THEREFOR, AND VEHICLE INCLUDING THE SAME
The present disclosure relates to a suspension control device, a control method therefor, and a vehicle including the same. The control device for controlling each suspension in a vehicle according to some embodiments includes at least: a memory and a processor that controls a damping force provided through each suspension in the vehicle using information stored in the memory. The processor identifies a current state of the vehicle using sensor data of a sensor unit of the vehicle, performs a first process of obtaining a currently damping force for a damper of each suspension according to the identified current state, identifies an output range for an output of an actuator of each damper, which changes according to a damper speed, and performs a second process of determining a target damping force for each damper in consideration of the identified output range.
VEHICLE RAMP ANGLE CONTROL
A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: detect (1004) a ramp (202) approached by an overhang of the vehicle; and in dependence on detecting the ramp, control (1020) the active suspension system to modify a relative ride height between a leading ride height at a set of leading wheels (FL, FR) of the vehicle and a trailing ride height at a set of trailing wheels (RL, RR) of the vehicle, to increase a ramp angle (a, 13) of the vehicle relative to the ramp.