A driving force acceleration calculation method is executed by a processing module; the driving force acceleration calculation method includes receiving a tilt sensing signal from the tilt sensing unit, a sensed angle and a sensed acceleration from the gravity sensing unit; determining whether the tilt sensing signal is an uphill signal or a downhill signal; when determining that the tilt sensing signal is the uphill signal, calculating a driving force acceleration as the sensed acceleration plus the gravitational acceleration component; when determining that the tilt sensing signal is the downhill signal, calculating the driving force acceleration as the sensed acceleration minus the gravitational acceleration component; outputting the driving force acceleration; the method is able to more accurately calculate the driving force acceleration of a bike, therefore better knowing whether the bike suddenly decelerates.

A method for allocating power between electric machines in a powertrain of an electric vehicle is described. The electric vehicle includes a gearbox having an input shaft and an output shaft configured to transmit a first torque to the wheels of the vehicle, a first electric machine having an output shaft coupled to the input shaft of the gearbox, and a second electric machine configured to supply a second torque to wheels of the vehicle. The method comprises: prior to a gear change of the first electric machine, allocating power to the first and second electric machines according to a first power ratio; in response of an intended gear change of the first electric machine, allocating power to the first and second electric machines according to a second power ratio.

A method may include identifying computing systems corresponding to an autonomous vehicle (AV) in which each computing system is configured to perform at least one operation relating to driving the AV. The method may include determining whether the computing systems use a first respective real-world parameter as an input to any of the operations or generate a second respective real-world parameter as an output of the operations. A respective operation corresponding to a respective computing system may be designated for accelerated performance based on the determination, and the operations of the computing systems may be performed. A first operation not designated for accelerated performance may include first computations corresponding to the first operation after waiting for a synchronization delay period, and a second operation designated for accelerated performance may include second computations corresponding to the second operation and performed without waiting for the synchronization delay period.

The invention relates to a multifunctional, flameproofed transmission control module [10] adapted for automatically altering transmission performance based on an alert received from a Proximity Detection System (PDS) [12]. The transmission control module [10] comprises a Proximity Detection Interface (PDI) [14] which is electronically linked to a PDS [12] and which is adapted to reduce transmission performance and vehicle speed the moment an obstacle is detected within a detection zone, and to allow an increase in transmission performance and vehicle speed the moment an obstacle is no longer detected within a detection zone.

A fuel management system includes a memory and a control module. The memory stores fuel rate maps for multiple firing fractions, where: each of the firing fractions corresponds to a respective firing pattern of an engine; at least some of the firing patterns include deactivating one or more cylinders. The control module: for each of the firing fractions, determines a fuel efficiency value for each of multiple transmission gear ratios, where fuel efficiency values are provided for transmission ratio and firing fraction pairs; applies drive ability constraints to provide resultant transmission ratio and firing fraction pairs; subsequent to applying the drive ability constraints and based on the fuel efficiency values, selects one of the resultant transmission ratio and firing fraction pairs; and concurrently operates a transmission and the engine according to the selected one of the transmission ratio and firing fraction pairs.

Apparatus for providing hydraulic line pressure and vacuum respectively to the steering subsystem and the braking subsystem of a wheeled motor vehicle comprises a battery powered electric motor which drives one or more of a hydraulic pump and a vacuum pump. When the engine is stopped while the vehicle is moving, to save fuel, the electric motor drives the pumps, so that hydraulic pressure and vacuum are provided for continued safe operation of the vehicle.

A method and system for operating a vehicle that includes an automatic transmission with a torque converter clutch is described. In one example, the method includes predicting a time that the torque converter clutch will open so that stopping rotation of the engine may be requested before the torque converter clutch is opened. The stopping rotation of the engine is requested to conserve fuel.

A method to control a road vehicle provided with a dual-clutch, servo-assisted transmission and standing still with the internal combustion engine turned on; the control method generally includes, when the road vehicle is standing still with the internal combustion engine turned on, the steps of: engaging a forward gear associated with a first clutch; engaging a reverse gear associated with a second clutch, which is different from and independent of the first clutch; closing the first clutch so as to cause the first clutch to transmit a first torque; and closing the second clutch so as to cause the second clutch to transmit a second torque, which is equal to the first torque multiplied by the quotient between a gear ratio of the reverse gear and a gear ratio of the forward gear.

In a cruise control method and a cruise control apparatus for a manual transmission vehicle, upon receiving a signal from an input device to start a cruise mode, a cruise control controller calculates an optimal gear stage for satisfying a target cruise traveling speed according to a traveling state of a vehicle, and a display device displays the calculated optimal gear stage to the driver to induce the driver to shift to the optimal gear stage. In addition, whether the gear stage by the driver's operation has matched the optimal gear stage may be determined within a predetermined time to determine whether a cruise control continues according to the determination result, thereby eliminating the driver's inconvenience due to frequent cancellation of the cruise mode.

Methods, systems, and apparatus for controlling operation of a vehicle. The system includes a microphone located in a passenger cabin of the vehicle and configured to detect sound data indicating noise in the passenger cabin. The system also includes a powertrain of the vehicle including an engine/motor for propelling the vehicle and a transmission of the vehicle having a plurality of gears. The system also includes an electronic control unit (ECU) of the vehicle coupled to the microphone and the transmission. The ECU is configured to determine a powertrain torque limit based on the sound data, determine whether a torque output of the powertrain exceeds the powertrain torque limit, and instruct the transmission to downshift when the torque output of the powertrain exceeds the powertrain torque limit.