Abstract: The fuel vapor treatment apparatus includes a fuel tank, a canister, a vapor passage, a purge passage, a sealing valve, a purge valve, an outside air introduction passage, a switching valve, and a differential pressure detector. A processing device of the fuel vapor treatment apparatus includes a purge control unit and a purge diagnosis unit. The purge control unit performs a purge process by opening the purge valve in a state where the purge valve and the sealing valve are closed and the switching valve is opened. The purge diagnosis unit diagnoses whether or not the purge process is normal based on the amount of change in the differential pressure between before and after the opening of the purge valve.

Abstract: A leak diagnosis device for a fuel vapor treatment apparatus, comprising: a first diagnosis unit that performs a leak diagnosis of a fuel tank based on a tank internal pressure in a closed state of a sealing valve; a determination unit that opens a sealing valve in a state where a purge valve and a switching valve are closed when the tank internal pressure is within a normal range, and determines whether there is an influence on the valve openability of the switching valve; and a second diagnosis unit that performs a leak diagnosis of the canister based on the tank internal pressure or the canister internal pressure when the determination unit makes a negative determination, and performs a leak diagnosis of the canister based on the canister internal pressure after closing the closed valve when the determination unit makes an affirmative determination.

Abstract: A diagnostic device is configured to execute a first acquisition process of acquiring a remaining amount of evaporated fuel in a fuel tank when an ignition switch turns off, as an end remaining amount, a determination process of, after the first acquisition process, determining whether there is a blockage of a vapor passage by reducing a pressure in a vapor passage with a pressure reducing pump when the end remaining amount is smaller than a prescribed value while the ignition switch is off, a second acquisition process of, after the determination process, acquiring a remaining amount of liquid fuel in the fuel tank when the ignition switch turns on, as a start remaining amount, and an invalidation process of invalidating a determination result that a blockage is present in the vapor passage in the determination process when the start remaining amount is larger than or equal to a set value.

Abstract: An abnormality diagnosis apparatus performs a stop process for stopping the supply of fuel to at least one of a plurality of cylinders and supplying fuel to the other cylinders or cylinder. The abnormality diagnosis apparatus performs a catalyst abnormality diagnosis process for diagnosing that there is an abnormality in an exhaust gas control apparatus, based on the value of a first misfire counter indicating the number of times of detection of a misfire during the operation of an internal combustion engine by a prescribed amount. In the catalyst abnormality diagnosis process, the abnormality diagnosis apparatus diagnoses that there is an abnormality in the exhaust gas control apparatus with the value of the first misfire counter being smaller when the stop process is performed than when the stop process is not performed during the operation of the internal combustion engine by the prescribed amount.

Abstract: A controller is configured to execute an emission process of, on condition that the number of times a leakage diagnosis of a fuel tank is performed in a stop period from when an internal combustion engine stops to when the engine restarts is less than a predetermined allowable number of times, emitting gas from the fuel tank via a canister by opening a shut-off valve, execute a diagnosis process of performing the leakage diagnosis based on a change in index value, caused by the emission process, the index value indicating a pressure in the fuel tank, and execute a subtraction process of, when fuel has been fed to the fuel tank in a state where the shut-off valve is open in the stop period of the internal combustion engine, reducing the allowable number of times in the stop period in which fuel has been fed to the fuel tank.

Abstract: A diagnostic device is configured to execute a first acquisition process of acquiring a remaining amount of evaporated fuel in a fuel tank when an ignition switch turns off, as an end remaining amount, a determination process of, after the first acquisition process, determining whether there is a blockage of a vapor passage by reducing a pressure in a vapor passage with a pressure reducing pump when the end remaining amount is smaller than a prescribed value while the ignition switch is off, a second acquisition process of, after the determination process, acquiring a remaining amount of liquid fuel in the fuel tank when the ignition switch turns on, as a start remaining amount, and an invalidation process of invalidating a determination result that a blockage is present in the vapor passage in the determination process when the start remaining amount is larger than or equal to a set value.

Abstract: An elevator car upper handrail apparatus, in which a connecting body is provided between respective ends of first and second side handrails on a landing side. The connecting body includes an opening/closing member which is rotatable between a closed position, in which a path for movement of a worker from a landing to a car upper surface is closed by the opening/closing member, and an open position, in which the path for movement is opened by the opening/closing member. The opening/closing member is configured to return automatically to the closed position. When the opening/closing member is in the closed position, the connecting body transmits an external force applied to one of the first and second side handrails in the width direction of a car to the other of the first and second side handrails.

Abstract: An elevator car upper handrail apparatus, in which a connecting body is provided between respective ends of first and second side handrails on a landing side. The connecting body includes an opening/closing member which is rotatable between a closed position, in which a path for movement of a worker from a landing to a car upper surface is closed by the opening/closing member, and an open position, in which the path for movement is opened by the opening/closing member. The opening/closing member is configured to return automatically to the closed position. When the opening/closing member is in the closed position, the connecting body transmits an external force applied to one of the first and second side handrails in the width direction of a car to the other of the first and second side handrails.

Abstract: A diagnosis device for an engine, the diagnosis device includes an electronic control unit. The electronic control unit is configured to execute EGR diagnosis processing to diagnose whether or not the EGR device operates normally while a vehicle is being decelerated, execute air flow meter diagnosis processing to diagnose whether or not the air flow meter is normal while the vehicle is decelerated, execute the EGR diagnosis processing after starting the air flow meter diagnosis processing, and execute the EGR diagnosis processing when the air flow meter diagnosis processing has not been completed and predetermined conditions that a duration of deceleration of the vehicle being shorter than a diagnosis time that is required to execute the air flow meter diagnosis processing are fulfilled.

Abstract: In an elevator refurbishing method in which a hydraulic elevator in which a hydraulic jack is installed in an equipment installation zone is refurbished into a machine-roomless elevator that uses a two-to-one (2:1) roping method, the equipment installation zone being a region inside a hoistway on either a left side or a right side of a car when viewed from directly above, at least one guide rail from a pair of counterweight guide rails is installed in the equipment installation zone while leaving the hydraulic jack in position, the hydraulic jack is removed from the hoistway, the hoisting machine is installed in a lower portion of the equipment installation zone using a space that is created by removal of the hydraulic jack, and a car return sheave and a counterweight return sheave are installed on an upper portion of the counterweight guide rails.

Abstract: A diagnosis device for an engine, the diagnosis device includes an electronic control unit. The electronic control unit is configured to execute EGR diagnosis processing to diagnose whether or not the EGR device operates normally while a vehicle is being decelerated, execute air flow meter diagnosis processing to diagnose whether or not the air flow meter is normal while the vehicle is decelerated, execute the EGR diagnosis processing after starting the air flow meter diagnosis processing, and execute the EGR diagnosis processing when the air flow meter diagnosis processing has not been completed and predetermined conditions that a duration of deceleration of the vehicle being shorter than a diagnosis time that is required to execute the air flow meter diagnosis processing are fulfilled.

Abstract: An ECU opens/closes an EGR valve (43) at a predetermined time (PI) to start blockage detection of an exhaust gas recirculation passage, increases an opening degree of a throttle valve (25) after start of the blockage detection over an opening degree immediately before the start of the blockage detection, and detects a blocking amount of the exhaust gas recirculation passage based on a change amount (?GN) in an internal pressure detected by a pressure sensor, which is a difference between the internal pressure detected when the EGR valve is opened and the internal pressure detected when the EGR valve is closed.

Abstract: In an elevator refurbishing method in which a hydraulic elevator in which a hydraulic jack is installed in an equipment installation zone is refurbished into a machine-roomless elevator that uses a two-to-one (2:1) roping method, the equipment installation zone being a region inside a hoistway on either a left side or a right side of a car when viewed from directly above, at least one guide rail from a pair of counterweight guide rails is installed in the equipment installation zone while leaving the hydraulic jack in position, the hydraulic jack is removed from the hoistway, the hoisting machine is installed in a lower portion of the equipment installation zone using a space that is created by removal of the hydraulic jack, and a car return sheave and a counterweight return sheave are installed on an upper portion of the counterweight guide rails.

Abstract: An abnormality determining apparatus of a fuel vapor processing system is provided. The system includes a canister for temporarily reserves fuel vapor generated within a fuel tank and a fuel vapor path for discharging the fuel vapor to an engine intake passage. When it is determined that there is a leak abnormality in the fuel vapor path, a pump is operated to discharge air from the fuel vapor path to the outside through the canister. When the pump is operated, a detector detects a pressure in the fuel vapor path as an actually measured pressure. A determining section determines whether there is a leak abnormality. The determining section sets a first determination pressure and a second determination pressure that is higher than the first determination pressure. The determining section determines that there is no leak abnormality either when a first condition is met or when a second condition is met.

Abstract: A cooling apparatus includes a thermostat that adjusts a feed rate of coolant to a radiator, estimating means that estimates a coolant temperature simulated value at least based on the detection value of an intake-air temperature sensor, and diagnosis means that diagnoses an operating state of the thermostat by comparing the detection value of a coolant temperature sensor, and the coolant temperature simulated value when a diagnosis condition is established. When a ratio of an integrated value of the simulated water temperature variation in an idle state to the integrated value of the simulated water temperature variation in a normal driving state is equal to or greater than an upper limit ratio XP, the diagnosis of the operating state of the thermostat is prohibited.

Abstract: A cooling apparatus for an engine is provided with a thermostat operating in such a manner as to control a supply of a coolant to a radiator. An electronic control apparatus estimates a reference temperature corresponding to a temperature of the coolant on the basis of at least a vehicle speed, and diagnoses an operating state of the thermostat on the basis of a comparison between a detected value of the coolant temperature and the reference temperature. The electronic control apparatus inhibits the diagnosis of the operating state of the thermostat in the case that any one of the following conditions i) to iii) is satisfied.

Abstract: A suction pump introduces negative pressure into a reference-pressure-detecting portion. A driving voltage V of the suction pump is adjusted in such a manner that pressure Pr in the reference-pressure-detecting portion is within a target pressure range. When the pressure Pr is brought into the target pressure range, the driving voltage V of the suction pump is stored as a first driving voltage V1 and the pressure Pr is stored as a reference pressure Pr. When pressure detection and leak detection process are conducted, the suction pump is driven at the first driving voltage V1 to introduce the negative pressure. The computer compares the pressure Pr with a leak determination value to determine whether a leak exists.

Abstract: An abnormality determining apparatus of a fuel vapor processing system is provided. The system includes a canister for temporarily reserves fuel vapor generated within a fuel tank and a fuel vapor path for discharging the fuel vapor to an engine intake passage. When it is determined that there is a leak abnormality in the fuel vapor path, a pump is operated to discharge air from the fuel vapor path to the outside through the canister. When the pump is operated, a detector detects a pressure in the fuel vapor path as an actually measured pressure. A determining section determines whether there is a leak abnormality. The determining section sets a first determination pressure and a second determination pressure that is higher than the first determination pressure. The determining section determines that there is no leak abnormality either when a first condition is met or when a second condition is met.

Abstract: A cooling apparatus includes a thermostat that adjusts a feed rate of coolant to a radiator, estimating means that estimates a coolant temperature simulated value at least based on the detection value of an intake-air temperature sensor, and diagnosis means that diagnoses an operating state of the thermostat by comparing the detection value of a coolant temperature sensor, and the coolant temperature simulated value when a diagnosis condition is established. When a ratio of an integrated value of the simulated water temperature variation in an idle state to the integrated value of the simulated water temperature variation in a normal driving state is equal to or greater than an upper limit ratio XP, the diagnosis of the operating state of the thermostat is prohibited.

Abstract: A cooling apparatus for an engine is provided with a thermostat operating in such a manner as to control a supply of a coolant to a radiator. An electronic control apparatus estimates a reference temperature corresponding to a temperature of the coolant on the basis of at least a vehicle speed, and diagnoses an operating state of the thermostat on the basis of a comparison between a detected value of the coolant temperature and the reference temperature. The electronic control apparatus inhibits the diagnosis of the operating state of the thermostat in the case that any one of the following conditions i) to iii) is satisfied.