Abstract: An Air Handling Unit for a ventilation system in a building has supply and extract air channels, each with an inlet and an outlet for guiding air to and from a building. Each air channel includes a damper controlling air flow. The air channels are in a heat exchanging relation to each other. The AHU also includes a fan and an Electronic Control Unit. The ECU outputs a defrost cycle initiation signal to defrost the heat recovery arrangement. The ECU outputs a defrost cycle termination signal to end the defrost cycle upon indication of the defrosting being completed. To optimize the defrost cycle time the ECU changes the first or second criterion for defrost cycle termination signal depending on the time for performing the defrost cycle such that the time period of the defrost cycle is prolonged/shortened when the defrost cycle time period is shorter/longer than preferred.

Abstract: A hearing protector device (9) comprising a controller (11), a memory (14), and a receiver (12) is provided. The controller (11) is configured to be connected to the memory (14), the receiver (12) and an at least one user-notifying device (31) adapted to notify a hearing protector user. The hearing protector device (9) is configured to receive at least one data transmission signal from a data transmission device (20); storing at least one signal parameter; and comparing said data transmission signal to the at least one stored signal parameter. The at least one stored signal parameter is associated with at least one suitable notification; wherein the user-notifying device (31) is configured to, when the signal from the data transmission device (20) matches the signal parameter, present the at least one notification associated to the signal parameter to the hearing protector user.

Abstract: An Air Handling Unit for a ventilation system in a building has supply and extract air channels, each with an inlet and an outlet for guiding air to and from a building. Each air channel includes a damper controlling air flow. The air channels are in a heat exchanging relation to each other. The AHU also includes a fan and an Electronic Control Unit. The ECU outputs a defrost cycle initiation signal to defrost the heat recovery arrangement. The ECU outputs a defrost cycle termination signal to end the defrost cycle upon indication of the defrosting being completed. To optimize the defrost cycle time the ECU changes the first or second criterion for defrost cycle termination signal depending on the time for performing the defrost cycle such that the time period of the defrost cycle is prolonged/shortened when the defrost cycle time period is shorter/longer than preferred.

Abstract: The present invention relates to a system, method, and computer program product for controlling the amount of fuel in connection to operating an internal combustion engine based upon engine boost pressure and engine operational conditions using a map function. The engine operational conditions comprise engine speed and ambient air pressure. The method comprises: for low and/or negative engine boost pressures using a map function specifying torque values so as to determine an available torque based upon an exhaust gas smoke limit taking driveability into account; and determining a maximum allowable fuel amount based upon said determined available torque considering losses and combustion efficiency.

Abstract: A hearing protector device (9) comprising a controller (11), a memory (14), and a receiver (12) is provided. The controller (11) is configured to be connected to the memory (14), the receiver (12) and an at least one user-notifying device (31) adapted to notify a hearing protector user. The hearing protector device (9) is configured to receive at least one data transmission signal from a data transmission device (20); storing at least one signal parameter; and comparing said data transmission signal to the at least one stored signal parameter. The at least one stored signal parameter is associated with at least one suitable notification; wherein the user-notifying device (31) is configured to, when the signal from the data transmission device (20) matches the signal parameter, present the at least one notification associated to the signal parameter to the hearing protector user.

Abstract: A vehicle suspension includes a pair of leaf springs arranged to extend longitudinally on opposed sides of a vehicle frame. Each leaf spring has a first end pivotally connected to the vehicle with a first bracket attached rigidly to the frame at a first position. A second end is connected to the vehicle frame with a spring shackle pivotably connected to a second bracket attached rigidly to the frame at a second position, in order to compensate for length changes of the leaf spring under load conditions. The suspension further includes an axle extending transversely of the vehicle frame which axle is mounted to each leaf spring at a position intermediate its first and second ends. At least an upper leaf of the leaf spring is a parabolic spring having a convex portion extending towards the frame, and the convex portion is located between the first end and the intermediate position.

Abstract: A vehicle suspension includes a pair of leaf springs arranged to extend longitudinally on opposed sides of a vehicle frame. Each leaf spring has a first end pivotally connected to the vehicle with a first bracket attached rigidly to the frame at a first position. A second end is connected to the vehicle frame with a spring shackle pivotably connected to a second bracket attached rigidly to the frame at a second position, in order to compensate for length changes of the leaf spring under load conditions. The suspension further includes an axle extending transversely of the vehicle frame which axle is mounted to each leaf spring at a position intermediate its first and second ends. At least an upper leaf of the leaf spring is a parabolic spring having a convex portion extending towards the frame, and the convex portion is located between the first end and the intermediate position.

Abstract: A dual clutch transmission (DCT) control module includes a position control module that actuates a shift fork of the DCT during a first shift state based on a measured shift fork position and a target shift fork position. A force control module adjusts a control force associated with the shift fork during a second shift state based on synchronizer slip.

Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A flow determining module determines a fork velocity for the shift fork, adjusts the fork velocity to generate an adjusted fork velocity based on the position, and generates a flow command for the flow control solenoid based on the adjusted fork velocity. A pressure determining module generates a pressure command for the pressure control solenoid. The shift fork is at least one of moved from a sync position to an engaged position and from an engaged position to a neutral position.

Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A slip sensing module estimates slip acceleration between an input shaft and a gear. A flow determining module generates a flow command for the flow control solenoid. A sync control module determines a slip acceleration profile including an estimated slip acceleration, adjusts the estimated slip acceleration based on the measured slip acceleration, and generates a pressure command for the pressure control solenoid based on the adjusted slip acceleration.

Abstract: A dual clutch transmission (DCT) control module includes a position control module that actuates a shift fork of the DCT during a first shift state based on a measured shift fork position and a target shift fork position. A force control module adjusts a control force associated with the shift fork during a second shift state based on synchronizer slip.

Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A slip sensing module estimates slip acceleration between an input shaft and a gear. A flow determining module generates a flow command for the flow control solenoid. A sync control module determines a slip acceleration profile including an estimated slip acceleration, adjusts the estimated slip acceleration based on the measured slip acceleration, and generates a pressure command for the pressure control solenoid based on the adjusted slip acceleration.

Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A flow determining module determines a fork velocity for the shift fork, adjusts the fork velocity to generate an adjusted fork velocity based on the position, and generates a flow command for the flow control solenoid based on the adjusted fork velocity. A pressure determining module generates a pressure command for the pressure control solenoid. The shift fork is at least one of moved from a sync position to an engaged position and from an engaged position to a neutral position.