Abstract: A cooling apparatus for a vehicle for cooling a high-voltage device group mounted on the vehicle includes a radiator mechanism including a first radiator, a fan disposed adjacent to the first radiator, and a second radiator disposed between the first radiator and the fan. A first refrigerant circulation circuit performs heat exchange with a first group device in the high-voltage device group by circulation of a first refrigerant which radiates heat by the first radiator. A second refrigerant circulation circuit performs heat exchange with a second group device in the high-voltage device group by circulation of a second refrigerant which radiates heat by the second radiator. A chiller circuit includes a chiller where the chiller circuit includes a communication circuit which causes a downstream side of the chiller and an upstream side of the first radiator to communicate with each other through a flow-passage switching valve.
Abstract: A drive device for an electric truck includes drive unit housings provided to each of drive wheels on left and right sides of the electric truck, each of the drive unit housings integrally accommodating a motor that generates drive power, a reducer that reduces a rotation speed of the motor, and a final gear that is connected to the reducer and transfers the drive power of the motor to the drive wheel. The drive device further includes suspension parts one provided over the final gear in each of the drive unit housings, steering gear parts one being provided over each of the suspension parts, pairs of hinge parts, and pairs of body-connecting parts, one of the pairs connecting each of the steering gear parts to a vehicle body of the electric truck through each of the pairs of hinge parts.
Abstract: Baffle plate devices, exhaust gas aftertreatment apparatuses, and methods for controlling airflow in exhaust gas aftertreatment apparatuses are disclosed. In some examples, a baffle plate device is mounted within an outlet conduit via which the exhaust gas treated by an exhaust gas aftertreatment apparatus exits to the environment. The baffle plate device impacts the flow path of the treated exhaust gas within the outlet conduit to deflect a portion of the treated exhaust gas toward tips of sensors, which extend into the flow path toward the baffle plate device, in order to mitigate the impact of the recirculation region, improve the flow characteristics (e.g., rate, direction, and/or field) of the treated exhaust gas at the tips, and thereby improve the accuracy of the sensors. By improving sensor accuracy, the disclosed technology advantageously reduces false positives and improves engine performance and emissions compliance.
Abstract: A method for filling a hydraulic system with a hydraulic fluid includes sealing the hydraulic system in a pressure-tight manner and recording a pressure in the sealed hydraulic system, filling or removing a predefined volume of the hydraulic fluid from the sealed hydraulic system, recording a pressure in the sealed hydraulic system after the filling or removing, calculating a volume of a total residual air in the hydraulic system depending on the pressures before and after the filling or removal of the predefined volume, calculating a final correction volume depending on the volume and a design-specified air feed of the hydraulic system, and refilling or removing the calculated final correction volume to achieve a final correct filling quantity for the hydraulic system.
Abstract: A vehicle control device includes a first control unit that executes, when an abnormality of a driver of a vehicle is detected, stop control, a second control unit that executes, when the vehicle is determined to have a risk of collision, deceleration control, a determination unit that identifies an object around the vehicle as a target candidate of the collision and determines whether or not there is the risk of the collision with the identified target candidate, and a setting unit that sets, when the abnormality is detected, an operation mode of the deceleration control to a special mode from a normal mode, the normal mode provided for cases in which the abnormality is undetected. The determination unit expands a range for identifying the object around the vehicle as the target candidate of the collision in the special mode as compared with the range in the normal mode.
Abstract: A group transmission device includes an upshift assembly with a first transmission element, a second transmission element and a third transmission element. A downshift assembly has a first transmission element, a second transmission element and a third transmission element. A main shaft is arranged coaxially to the upshift assembly and a layshaft is arranged parallel to the main shaft. A first idler gear is arranged coaxially to the main shaft and axially between the upshift assembly and the downshift assembly and is connectable to the main shaft for conjoint rotation by a first shift unit. The first idler gear is connectable to the third transmission element of the downshift assembly for conjoint rotation by a second shift unit.
Type:
Grant
Filed:
October 7, 2020
Date of Patent:
November 12, 2024
Assignee:
Daimler Truck AG
Inventors:
Frank Steffens, Marc Stroelin, Jens Luckmann, Marc Klein, Detlef Schnitzer
Abstract: A monitoring apparatus of an onboard electrical system of an at least partially electrically operated motor vehicle. A switchgear is configured to switch a high-voltage positive path and a high-voltage negative path of an electrical energy storage device of the onboard electrical system. The switchgear has a control line which is coupled to a pyrotechnic safety device. In an event of an interruption of the control line, the switchgear opens the high-voltage positive path and the high-voltage negative path. A control line switchgear is series-coupled in the control line to the pyrotechnic safety device. The control line switchgear interrupts the control line as a function of a control signal of an electronic computing device. The electronic computing device is configured to check a voltage potential in the control line using the control line switchgear before the electrical energy storage device is connected to the onboard electrical system.
Type:
Grant
Filed:
November 2, 2021
Date of Patent:
November 12, 2024
Assignee:
Daimler Truck AG
Inventors:
Tobias Aurand, Soeren Schoerle, Markus Zimmer
Abstract: A valve train for an internal combustion engine includes an outlet valve, an engine brake rocker shaft that is pivotable around a pivot axis, where the outlet valve is operable by pivoting the engine brake rocker shaft during an engine braking operation of the internal combustion engine, a camshaft which has a cam via which the engine brake rocker shaft is pivotable around the pivot axis, and a spring element via which the engine brake rocker shaft is tensioned against the camshaft. The spring element is a leaf spring.
Abstract: A storage compartment of a vehicle includes at least two covering elements disposed one behind the other in a longitudinal direction of the vehicle in a closed position where the at least two covering elements are shiftable out of the closed position into an open position guided by forced guides and where the at least two covering elements in the open position enclose an angle of at least ?45° to at most 45° with a vertical direction of the vehicle. The at least two covering elements are shiftable between the closed position and the open position by an actuator device. At least two catches respectively engage on the at least two covering elements where the at least two catches are respectively hinged on at least two circularly moveable drive elements of the actuator device.
Abstract: A battery unit of a vehicle includes a plurality of cell stacks which each include a respective plurality of cells electrically interconnected to one another, an electrical attachment contact, and a contact key element. The contact key element has a contact region and is electrically insulating outside of the contact region. In a first contact position of the contact key element the plurality of cell stacks are interconnected electrically to one another via the contact region and in a subsequent second contact position of the contact key element the plurality of cell stacks that are interconnected electrically to one another are electrically connected to the electrical attachment contact.
Abstract: A motor vehicle has a steerable first axle, a driveable second axle, an electric drive for driving the second axle, and a traction battery via which the electric drive can be provided with electrical energy stored in the traction battery. The electric drive has a housing, an electric motor, which has a stator and a rotor that can be rotated around a rotor axis relative to the stator and relative to the housing, and a first planetary gear set arranged coaxially with the rotor axis. The first planetary gear set has a first element, a second element, and a third element.
Abstract: An electric vehicle includes a ladder frame and a driving unit, the driving unit including a motor that generates driving force to be transmitted to an axle of the electric vehicle and a transmission mechanism that shifts the driving force passed from the motor. The electric vehicle further includes a motor housing that accommodates the motor of the driving unit, a leaf spring that suspends the axle from the electric vehicle, a first coupling part that couples the ladder frame to the motor housing, and a second coupling part that is integrated with the first coupling part and that couples the ladder frame to an end part of the leaf spring. The second coupling part has a rib-shaped portion that protrudes outward in the vehicle width direction and that is connected to the end part the leaf spring.
Inventors:
Steven Powell, Jeffrey Cotner, Mauricio Cavalheiro, Austin Cox, Rafael Dos Santos, Curtis Parker, Michael Woodruff, Daniel Kunzelmann, Jackson Slocum, Dinesh Madugundi, Paolo Zanetti