A drive-force control apparatus for a vehicle including a first drive apparatus for driving a first pair of wheels and a second drive apparatus for driving a second pair of wheels. Each of the first pair of wheels is one of front and rear wheels of the vehicle, and each of the second pair of wheels is the other of the front and rear wheels. During running of the vehicle on a wave-like road, the control apparatus reduces a drive-force share ratio of one of the first and second drive apparatuses, and to increases a drive-force share ratio of the other of the first and second drive apparatuses, wherein the one of the first and second drive apparatuses includes a weakest part that is to be damaged the most easily among parts composing the first and second drive apparatuses, by resonance caused by the running on the wave-like road.

A hybrid drive train for a vehicle has at least one internal combustion engine with an internal combustion engine drive shaft, in particular a crankshaft, and at least one first electrical machine with a first electrical machine drive shaft. The internal combustion engine and the first electrical machine are designed to transfer a torque to at least one drive axle. A transmission has a transmission input shaft and a transmission output shaft which is operatively connected to a first drive axle that can be driven by the internal combustion engine. The transmission input shaft of the transmission is connected at least to the internal combustion engine drive shaft of the internal combustion engine in order to transfer a torque from the internal combustion engine to the transmission input shaft and further to the first drive axle. The transmission input shaft and the internal combustion engine drive shaft of the internal combustion engine are arranged parallel to each other.

A control method for a hybrid vehicle is provided. The hybrid vehicle includes: a generator configured to charge a battery by using power of an engine; an electric motor configured to drive a driving wheel by electric power of the battery; and a particulate filter configured to collect particulate matter contained in exhaust gas from the engine. In the control method, the engine is driven to raise a temperature of the particulate filter when a first temperature rise condition is satisfied in which a first predetermined amount or more of the particulate matter is accumulated in the particulate filter and the temperature of the particulate filter is equal to or lower than a predetermined temperature. Drive of the engine is prohibited, when a predetermined first condition that a driver does not intend to drive the engine is satisfied.

A vehicle control system that ensures a sufficient distance to empty in the event of a failure of a clutch for changing an operating mode of a vehicle. The control system is configured to: determine a reduction in performance of the clutch based on a value of a parameter for determining a performance of the clutch; and select the operating mode in which a distance to empty is longer and inhibit to actuate the engagement device, when a reduction in performance of the engagement device is determined.

An apparatus and method for diagnosing damage to drive-train hardware of a vehicle in which a disconnector may obtain speed of an auxiliary drive wheel motor of the vehicle and speed of a main drive wheel motor of the vehicle and determines damage to the drive-train hardware including the disconnector that controls whether to interrupt delivery of power through engagement or disengagement between auxiliary drive wheel motor-side drive-train hardware and auxiliary drive wheel-side drive-train hardware, based on whether a difference between the speed of the auxiliary drive wheel motor and the speed of the main drive wheel motor exceeds a threshold value, Accordingly, preventing divergence of motor RPM by diagnosing damage to the drive-train hardware of the vehicle.

Disclosed is a control method for an internal combustion engine (3) including a power generation motor (4) driven by a power of the internal combustion engine (3) and a damper (30) provided between the internal combustion engine (3) and the power generation motor (4) in a power transmission path, wherein a maximum value of a torque fluctuation generated in an event of a misfire occurring in a cylinder of the internal combustion engine (3) is larger than a value at which a displacement of a main damper (30a) of the damper (30) is allowed to be suppressed to be smaller than a displacement at which abutting occurs on a first stopper (31a) by a counter torque of the power generation motor (4), and the control method includes limiting a torque (Te) of the internal combustion engine (3) within a range in which a displacement of the main damper (30a) is allowed to be controlled to be smaller than a displacement at which abutting occurs on the first stopper (31a) by a counter torque of the power generation motor (4).

A vehicle control system that ensures a sufficient distance to empty in the event of a failure of a clutch for changing an operating mode of a vehicle. The control system is configured to: determine a reduction in performance of the clutch based on a value of a parameter for determining a performance of the clutch; and select the operating mode in which a distance to empty is longer and inhibit to actuate the engagement device, when a reduction in performance of the engagement device is determined.

Methods, apparatus, and articles of manufacture are disclosed for limiting a load applied to a rotatable shaft joint. An example apparatus comprises a comparator to, based on at least one of an angle of a rotatable shaft joint or a torque applied to the joint, determine whether at least one of the torque or the angle exceeds a threshold, and a limiter to limit at least one of the angle or the torque when at least one of the torque or the angle exceeds the threshold.

A method for assessing the damage to at least one load-carrying component of a working machine, an actual load collective is determined during operation of the at least one load-carrying component and, on the basis thereof, an actual degree of damage to the at least one load-carrying component is determined. At least one test load collective is retained, which is determined during testing of the at least one load-carrying component, in order to derive from such testing a test degree of damage. During the method, the test degree of damage is compared with the actual degree of damage and at least one control signal is emitted on the basis of the comparison between the at least one test degree of damage and the actual degree of damage.

A method for estimating cardan shaft moments in a vehicle includes performing a state space modelling of a physical model for force transmission in at least one drive train The at least one drive train is formed with at least one drive machine, at least one axle and at least two axle shafts each with a respective wheel. The method further includes selecting the physical model as a torsional oscillator chain in which a respective drive machine inertia moment is assigned to the respective drive train and a respective wheel inertia moment is assigned to the respective wheel. The respective drive machine inertia moment is connected by a respective spring-damper element to the respective wheel inertia moment of the respective wheel which is connected to the respective axle shaft. A vehicle mass is connected by a respective spring-damper element to the respective wheel inertia moment of the respective wheel.