摘要:
A device for determining air entering cylinders of an internal combustion engine having a supercharger. The air is determined as a function of such quantities as rpm, air throughput in the intake manifold, throttle valve position values and temperature, characterized in that at least the following physical relationships are included in the determination: suction equation of the engine balancing equation for a filling in an intake manifold flow rate equation at a throttle valve balancing equation in a volume between the throttle valve and the supercharger.
摘要:
A method for adjusting the torque in an internal combustion engine is introduced having the steps: determining a desired torque; determining an operating point from measured values for air charge and rpm; determining a standard torque for this operating point; determining a desired efficiency from standard torque and desired torque; determining the lambda corresponding to this efficiency; determining the fuel quantity from the corresponding lambda and the air charge derived from measurement quantities. The fuel quantity in combination with the air charge yields the corresponding lambda for realizing the desired torque.
摘要:
A method for controlling/regulating a process in a motor vehicle, in particular a combustion process, gear-shifting process, or braking process, with the help of a characteristics grid map, which is defined by a plurality of performance quantities of the process and represented by data points that have corresponding characteristics-map values. At least one characteristics-map value is determined from the characteristics grid map in a control cycle for an operating point by first determining adjacent data points, which define an interpolation range in which the operating point lies, and by then interpolating between the adjacent data points. To reduce the computational time for interpolation, the at least one characteristics-map value is determined for the operating range within the framework of a linear interpolation based on a minimum number of data points. The minimum number of data points results from a number of the plurality of performance quantities of the process, which define the characteristics map, plus one.
摘要:
A computer system for controlling the operation of a drive of a motor vehicle includes a plurality of different predetermined components each including at least one functional unit. Such components include a first component representing the motor vehicle as a whole and second component representing the drive. A plurality of interfaces is interposed between these components, being operative for transmitting data between such components. At least one storage stores information concerning such components and interfaces. The functional units mentioned above and the vehicle as a whole are controlled by controlling the above-mentioned components inclusive of the first component. In performing the control, request signals and inquiry signals are generated and transmitted through the interfaces between the components. The operation of the drive is controlled in dependence on the data exchanged between the components through the interfaces.
摘要:
A steer-by-wire steering system comprised of an electronically regulated steering positioner mounted to the steering gear of the front axle or to both front wheels of a vehicle together with an electronic steering regulator and a feedback actuator. A sensor senses the driver's selected direction from the steering wheel. Road feedback can be relayed to the driver through a feedback actuator via the steering wheel. The loss of road feel caused by the absence of the steering column, which normally strongly influences the driver's directional wish, is recreated by the feedback actuator.
摘要:
The invention is directed to a method for determining the actual torque of an internal combustion engine having gasoline direct injection. In the method, the torque of the engine is computed with a model in dependence upon operating variables. A value for the maximum torque, which would be achieved under standard conditions, is specified from a pregiven characteristic field in dependence upon operating variables which characterize an operating point of the engine. An efficiency is inputted for at least one torque-influencing actuating variable of the engine with the efficiency being formed in dependence upon a current or present value of the actuating variable and a standard value of the actuating variable. The maximum torque is corrected with the efficiency to determine the actual torque. The invention is also directed to an arrangement for determining the actual torque of the engine.
摘要:
An internal combustion engine, in particular for a motor vehicle, includes a throttle arranged in an intake pipe, through which air can be fed to a combustion chamber. Furthermore, the internal combustion engine includes a valve arranged in an exhaust gas recirculation line, through which exhaust gas can be fed to the intake pipe. A first mass flow through the throttle can be determined by a control device. Furthermore, a second mass flow through the valve can be determined by the control device. Finally, a third mass flow fed to the combustion chamber can be determined by the control device from the first mass flow through the throttle and the second mass flow through the valve.
摘要:
The invention is directed to a method and an arrangement for controlling a motor vehicle having a plurality of component systems. A first one of the component systems is a motor control system. An interface position is defined between various ones of the component systems and faces toward the first component system. The interface position operates on the basis of the torque generated by the motor. The component systems exchange data via the interface position with respect to this torque for controlling the motor vehicle.
摘要:
A sheet depositing device comprises a depositing surface (2) limited by a front abutment (8). Above the depositing surface (2), a cover (4, 5) is pivotable about a journal (7). A hold-down element (6) provided on the cover (4, 5) is associated with the sheet stack (3) to be formed. It has a front end (6a) which rests under the action of gravity on sheet stack (3). Hold-down element (6) is connected with the cover (4, 5) via an engagement member (14) such that when the cover (4, 5) is opened, it is pivoted towards the cover so that the stacking area can be freely inspected and access is not obstructed when the cover (4, 5) is open. At the beginning of the opening movement of cover (4, 5) the front end (6a) of the hold-down element is caused by the engagement member (14) to move away from the abutment (8).
摘要:
At the free end of an arm (1) which is pivotable about a shaft (12), a driven coupling portion (3) with a claw coupling (3a) is rotatably mounted, such coupling being held in positive engagement with a sleeve (5) shiftable on a shaft (2). Sleeve (5) is provided with a circumferential cam groove (5b) which has an advancing and returning pitch and is engaged by a stationary projection (11). Sleeve (5) is provided with a concentrical collar (5d) on which a second wheel (4), having a smooth circumferential surface, is shiftably mounted and held in positive engagement. On an eccentric collar (5a) of sleeve (5), a first wheel (6) designed as a radial ball bearing is mounted whose circumferential surface has high static friction. When sleeve (5) is set in motion, it moves to and fro, the second wheel (4) being urged via an inclined surface (4b4c) into contact with the first wheel (6) and entraining said wheel by frictional engagement. The cam groove (5b) and the eccentric mounting of the first wheel (6) are adapted to each other such that the first wheel (6) is driven in a pulse-type manner by frictional engagement and acts in a pulse-type manner on the sheet to be aligned.