摘要:
A control apparatus for a vehicle drive unit including a control structure of a hierarchical type having a demand generation level, a mediation level, and a control variable setting level and a signal is transmitted in one direction from a higher level of hierarchy to a lower level of hierarchy. The demand generation level includes demand output elements for each capability. The mediation level includes mediation elements, each corresponding to a classified category of demands. Each of the mediation elements collects demand values of the category of which the mediation elements are in charge and performs mediation according to a rule to arrive at a single demand value. The control variable setting level includes an adjuster portion adjusting each of the mediated demand values based on a relationship between each other and control variable calculation elements calculating a control variable of each of a plurality of actuators based on the adjusted demand value.
摘要:
In a V-type six-cylinder engine, turbo-superchargers are provided for compressing intake air and feeding the compressed air into combustion chambers, and an ECU is operable to switch the combustion mode from a non-supercharged stoichiometric combustion mode to a supercharged lean combustion mode, depending on the engine operating conditions. When switching from the non-supercharged stoichiometric combustion mode to the supercharged lean combustion mode, the ECU retards the ignition timing, and keeps the retard amount of the ignition timing at a constant value if the increasing actual boost pressure becomes equal to or higher than a pre-set target boost pressure.
摘要:
The present invention provides an internal combustion engine control device which is capable of implementing a plurality of functions desired to the internal combustion engine. An adder unit determines a total energy E_total that should be generated by the engine by adding a target work, a target exhaust energy and cooling heat loss, which are calculated in a style of energy. A target fuel supply quantity calculation unit calculates a target fuel supply quantity necessary for generating the E_total. A target intake quantity calculating unit calculates a target intake quantity based on the target fuel supply quantity and a target A/F. A target ignition timing calculation unit calculates a target ignition timing necessary for realizing the target exhaust energy.
摘要:
Hydraulic pressure control apparatus for controlling a pressure of a brake cylinder pressure, including a pump device connected to the brake cylinder and including at least one set of a pump for delivering a pressurized fluid to the brake cylinder and a pump operating electric motor, a low-pressure source for storing the fluid discharged from the brake cylinder, a solenoid-operated pressure control valve disposed between the low-pressure source and the brake cylinder and operated with an electric energy applied thereto, for controlling the brake cylinder pressure depending upon the electric energy, and a controller including a pressure increase control device for increasing the brake cylinder pressure by controlling the electric motor, and a pressure reduction control device or reducing the brake cylinder pressure by controlling the electric energy applied to the control valve.
摘要:
To balance between air-fuel ratio controllability and torque response performance in a control device for an internal combustion engine performing a throttle delay control. An air quantity requirement is calculated based on torque required of an internal combustion engine. A throttle opening for achieving the air quantity requirement is calculated by using an inverse model of an intake system model that models response of a cylinder intake air quantity relative to an operation of a throttle. A throttle opening delayed by a predetermined delay time Td is outputted as an operation amount to the throttle. When, however, there is no allowance for introducing the delay time Td between the response time of the cylinder intake air quantity to a throttle operation to be achieved at a current engine speed and a torque response time requirement, the delay processing of the throttle opening is restricted by, for example, making the delay time Td zero or shortening the delay time Td.
摘要:
A control apparatus for an internal combustion engine that accurately incorporates demands related to various capabilities of the internal combustion engine. A demand output unit outputs various capability demands of the internal combustion engine, expressed in terms of either torque, efficiency, or an air-fuel ratio data. A torque mediation unit collects only the demand values expressed in terms of torque, and mediates the torque demand values into one. An efficiency mediation unit collects the demand values expressed in terms of efficiency and mediates the efficiency demand values into one. An air-fuel ratio mediation unit collects the demand values expressed in terms of the air-fuel ratio and mediates the air-fuel ratio demand values into one. A control variable computing unit computes control variables of actuators, based upon the torque demand value, efficiency demand value, and air-fuel ratio demand value output from the mediation units.
摘要:
A control device that is used with an internal combustion engine to improve both the response and controllability of torque generated by the internal combustion engine. The control device calculates an operation amount of an intake actuator in accordance with a demanded air amount. The control device then calculates a torque that is generated when the intake actuator is operated by the calculated operation amount at a predetermined ignition timing setting, and calculates an ignition timing retard amount that is necessary to achieve a demanded torque in accordance with the difference between the calculated torque and the demanded torque. The control device ensures that the demanded torque and a demanded efficiency are both reflected in the demanded air amount.
摘要:
A torque control device for a power system and facilitates the addition of a new torque control actuator. A target torque signal according to a target torque for the power system is distributed to each actuator in a predetermined distribution priority order. A signal processing filter is mounted on a signal input section of each actuator and allows only a portion of distributed signal that matches the operation characteristics of the actuator to pass through as a command signal for the actuator.
摘要:
A control device that is used with an internal combustion engine to improve both the response and controllability of torque generated by the internal combustion engine. The control device calculates an operation amount of an intake actuator in accordance with a demanded air amount. The control device then calculates a torque that is generated when the intake actuator is operated by the calculated operation amount at a predetermined ignition timing setting, and calculates an ignition timing retard amount that is necessary to achieve a demanded torque in accordance with the difference between the calculated torque and the demanded torque. The control device ensures that the demanded torque and a demanded efficiency are both reflected in the demanded air amount.
摘要:
This invention is intended to ensure that a control device for a vehicle drive unit is capable of realizing desired torque by making the main-actuator and sub-actuator collaborate adequately while holding the interposition of the sub-actuator as low as possible. For this end, a future target of torque that is going to be output from the engine and a realization timing of the future target are taken as reservation information for reserving engine torque regulation. Next, the required period, which is required to realize the future target when a main-actuator (a throttle) is operated to regulate the torque, is computed from a current engine operating condition. Then, the operation of the main-actuator is started at the timing preceding the realization timing by the required period for realizing the future target. In parallel with that, a sub-actuator (an ignition system) is operated to cancel out a torque change induced by the operation of the main-actuator during the period from the start timing of the operation of the main-actuator to the realization timing.