Patent application number | Description | Published |
20090012764 | SYSTEM MODEL PRODUCTION SUPPORT APPARATUS AND SYSTEM MODEL PRODUCTION SUPPORT METHOD - In a system model production support apparatus and method, plural partial models are stored along with input/output information for each partial model; an input-side portion of the system model is produced by sequentially selecting the partial models constituting the input-side portion from among the stored partial models in an order starting from the partial model closest to an input-side end of the system model, based on input information for the system model, and the input/output information for each partial model, and sequentially connecting the selected partial models; an output-side portion of the system model is produced by sequentially selecting the partial models constituting the output-side portion from among the stored partial models in an order starting from the partial model closest to an output-side end of the system model, based on output information for the system, and the input/output information for each partial model, and sequentially connecting the selected partial models; and the produced input-side portion is connected with the produced output-side portion to produce the entire system model. | 01-08-2009 |
20090013025 | MODEL TRANSMISSION APPARATUS AND MODEL TRANSMISSION METHOD - A model transmission apparatus used when producing a system model. In the model transmission apparatus, models are transmitted between first computers and a second computer. The second computer includes a second transmission device that transmits a system model to each of the first computers. When the system model is transmitted, component models included in the system model are concealed. When at least one of the concealed component models included in the system model matches at least one corresponding component model stored in the first storage device of at least one of the first computers, the at least one of the first computers automatically replaces the at least one of the concealed component models included in the system model with the at least one corresponding component model stored in the first storage device of the at least one of the first computers. | 01-08-2009 |
20100095931 | CONTROL APPARATUS FOR DRIVING SOURCE - A first arbitration unit determines one demand engine torque of static demand engine torques set in a power train driver model and an ECT torque control system. The demand engine torque determined by the first arbitration unit is converted into dynamic demand engine torque by a conversion unit. A second arbitration unit determines demand engine torque for use in control of an engine from among the dynamic demand engine torque converted from the static demand engine torque by the conversion unit, dynamic demand engine torque set by a VDIM system, and dynamic demand engine torque set by a vibration suppression control system. An engine control system controls the engine according to the demand engine torque determined by the second arbitration unit. | 04-22-2010 |
20100191406 | CONTROL APPARATUS FOR VEHICLE DRIVE UNIT - 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. | 07-29-2010 |
20100198485 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - 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. | 08-05-2010 |
20100211287 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - The internal combustion engine control device includes a request output section and a mediation section. The request output section expresses a plurality of requests about internal combustion engine functions (drivability, exhaust gas, and idling) in terms of physical quantities (torque, efficiency, and air-fuel ratio) and outputs the requests. The mediation section collects a plurality of requests A-C expressed in terms of the same physical quantity and conducts mediation in accordance with a predefined rule to determine one request value E. The requests A-C output from the request output section are defined on the basis of the range of request values and the distribution of expected values indicative of the degree of expectation of request values within the range. The mediation section calculates the sum D of the expected values of the plurality of requests A-C and conducts mediation to determine the request value E that prevails when the sum is maximized. | 08-19-2010 |
20100211294 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The present invention provides a control device that is used with an internal combustion engine and capable of achieving a target torque with high accuracy and without being affected by EGR. A target torque setup device sets a target torque for the internal combustion engine. A target EGR rate setup device sets a target EGR rate. A target torque correction device and calculates a correction factor for correcting the influence of EGR on torque in accordance with the target EGR rate and an air amount, and corrects the target torque with the correction factor. A target air amount calculation device calculates a target air amount from the corrected target torque. A controller controls the operations of a plurality of actuators for adjusting an in-cylinder air amount and EGR rate in accordance with the target air amount calculated from the corrected target torque and with the target EGR rate. | 08-19-2010 |
20100268436 | CONTROL DEVICE FOR VEHICLE DRIVE UNIT - 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. | 10-21-2010 |
20110005212 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus includes: an accessory that adjusts torque that is output from an internal combustion engine, by giving load to the internal combustion engine; an ignition timing control portion that is provided so as to adjust ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing; an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine; and a catalyst that purifies exhaust gas discharged from the internal combustion engine. The ignition timing control portion reduces the retardation of the ignition timing with increase in temperature of the catalyst. The accessory load adjustment portion increases the accessory load with increase in the temperature of the catalyst. | 01-13-2011 |
20110022288 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - 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. | 01-27-2011 |
20110071747 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The present invention relates to a control device for a spark-ignition internal combustion engine provided with a cylinder pressure sensor and aims to facilitate optimal control of a combustion state even in a situation where an operating condition is variable. | 03-24-2011 |
20110082629 | VEHICLE CONTROL APPARATUS - In a vehicle control apparatus controlling a vehicle operating state by using a torque generated by an internal combustion engine, an arrangement is made to inhibit fuel efficiency from being aggravated as a result of ignition timing of the internal combustion engine being retarded. | 04-07-2011 |
20110087421 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal-combustion engine designed to ensure that required responsiveness is obtained as actual torque responsiveness with respect to a torque demand even when the torque responsiveness with respect to the actuation of a particular actuator is affected by the operating conditions. A response compensating filter is provided at a preceding stage to an air inverse model, and the target torque which has been corrected by the response compensating filter is converted by the air inverse model to obtain a target opening degree of a throttle. A time constant of the response compensating filter is set on the basis of the operating conditions of the internal-combustion engine so that the responsiveness of actual torque with respect to the torque demand reaches a preset standard responsiveness. | 04-14-2011 |
20110098905 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - Disclosed are a control device and a control method that are used with an internal combustion engine in which the air-fuel ratio in the vicinity of an ignition plug differs from the overall air-fuel ratio in a cylinder, and capable of properly fulfilling demands concerning various capabilities of the internal combustion engine by accurately reflecting each of the demands in the operation of each actuator. Three physical quantities, namely, a torque, an efficiency, and an air-fuel ratio, are used as controlled variables for the internal combustion engine. Target values for the controlled variables are then set by integrating at least some of demands concerning a capability of the internal combustion engine into the three physical quantities. Further, in accordance with the target values for the three controlled variables, namely, the torque, the efficiency, and the air-fuel ratio, three operation amounts, namely, an intake air amount adjustment valve opening, an ignition timing, and a fuel injection amount are set, and a fourth operation amount for adjusting the air-fuel ratio distribution in the cylinder is set. | 04-28-2011 |
20110126803 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for a spark-ignition internal combustion engine that sets ignition timing based on a target value of a predetermined combustion-related parameter correlated with a combustion state and operates an ignition device in accordance with the ignition timing thus set. The control device calculates an actual value of the combustion-related parameter from an output value of the cylinder pressure sensor and feeds back the calculated value of the combustion-related parameter to the setting of ignition timing. Further, in parallel with the above processing, the control device calculates a value of a predetermined combustion variation parameter correlated with the magnitude of combustion variation from the output value of the cylinder pressure sensor. If the calculated value of the combustion variation parameter deviates from an allowable range of the combustion variation, the control device stops the feedback of the calculated value of the combustion-related parameter. | 06-02-2011 |
20110144885 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is provided that can precisely reflect requirements relating to performance of the internal combustion engine in a control amount of each actuator by compensating for weaknesses in the so-called torque demand control. A requirement value of each of torque, efficiency, and an air-fuel ratio, and engine information are inputted to an engine inverse model. The engine inverse model is then used to calculate actuator requirement values for achieving those requirement values. An actuator direct requirement value directly required of each of actuators is also acquired. Control of the actuators is adapted to be changed between that according to the actuator requirement value and that according to the actuator direct requirement value. | 06-16-2011 |
20110191009 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - 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. | 08-04-2011 |
20120010801 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a control device which uses a specific physical quantity as a control variable of an internal combustion engine, and controls the internal combustion engine by manipulation of one or a plurality of actuators, switching of setting of a manipulation variable based on a required value of a physical quantity and setting of the manipulation variables by direct instruction to individual actuators is performed without generating discontinuity in a realized value of the physical quantity. When a manipulation variable instruction value directly designating a manipulation variable of an actuator is present, the manipulation variable instruction value is converted into a value of a physical quantity which is realized in the internal combustion engine by the operation quantity instruction value. When a deviation between a physical quantity conversion value converted from the manipulation variable instruction value and the physical quantity required value is within a predetermined range, switch of information for use in setting of the manipulation variable of each of the actuators is permitted. | 01-12-2012 |
20120022770 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine is provided. The control device includes means which controls fuel injection by a fuel injection device, and means which controls the throttle. The fuel injection control means sequentially restarts fuel injection for each cylinder in accordance with an ignition sequence among cylinders when cancellation conditions of fuel cut are satisfied during implementation of the fuel cut. Meanwhile, the throttle control means firstly controls the throttle to a closing side when the cancellation conditions of fuel cut are satisfied. The throttle is controlled to the closing side, whereby the air amount in the intake pipe is decreased, and the air amount in a cylinder which is the basis of calculation of a fuel injection amount is also decreased. | 01-26-2012 |
20120166064 | INTAKE AIR FLOW RATE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A required intake air flow rate is converted to a post-model required intake air flow rate (BMtsm) by a base-system normative model, and the inverse model of an intake system model is used to calculate a base-system required throttle opening degree (BTA) so as to achieve the post-model required intake air flow rate (BMtsm). On the other hand, the required in-take air flow rate (Mt) is converted to a post-model required intake air flow rate (HMtsm) by a high-response-system normative model, and the inverse model of the intake system model is used to calculate a high-response-system required throttle opening degree (HTA) so as to achieve the post-model required intake air flow rate (HMTsm). Then, a target throttle opening degree (TAt) is set so as to fall within the range from the base-system required throttle opening degree (BTA) to the high-response-system required throttle opening degree (HTA) and the reduce a variation amount. | 06-28-2012 |
20130282259 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - A control apparatus for a supercharged internal combustion engine, which can achieve a target torque accurately even if the target torque contains a high-frequency vibration component. The control apparatus determines a target air quantity and a target boost pressure from a target torque, operates an actuator for air quantity control according to the target air quantity, and operates an actuator for boost pressure control according to the target boost pressure. The target torque is formed to contain a low-frequency torque component that is set at all times based on a torque requirement from a driver and a high-frequency torque component that is set as necessary for a specific type of vehicle control. When the target torque contains only the low-frequency torque component, the target boost pressure is formed using a pressure component corresponding to the low-frequency torque. | 10-24-2013 |
20140076278 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - The present invention is a proposal relating to cooperative manipulation of an actuator which actively changes a supercharging pressure and a throttle in the case of application of torque demand control to an internal combustion engine with a supercharger. A control device provided by the present invention separately determines a target air quantity for manipulation of the throttle, and a target air quantity for manipulation of the actuator. In more detail, driver required torque which is included in required torque is converted into an air quantity in accordance with a predetermined conversion rule, and the air quantity which is obtained by the conversion is determined by calculation as a reference target air quantity. The reference target air quantity is used as a target air quantity for throttle manipulation, and is also used as a target air quantity for actuator manipulation at a normal time. When a change occurs to the required torque, and the change cannot be realized under the reference target air quantity, a correction target air quantity capable of realizing the change is determined by calculation, and is used as the target air quantity for throttle manipulation. | 03-20-2014 |
20140202137 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE WITH TURBO SUPERCHARGER - An object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure. | 07-24-2014 |