A system according to the principles of the present disclosure includes a storage capability module and at least one of an engine speed control module and a spark control module. The storage capability module determines a capability of a catalytic converter to store oxygen. The engine speed control module controls a speed of an engine based on the oxygen storage capability of the catalytic converter. The spark control module controls a spark timing of the engine based on the oxygen storage capability of the catalytic converter.

Systems and methods for improving engine torque response are presented. In one example, engine idle speed is increased to shorten engine torque response based on engine operating conditions. The methods and systems may be useful for operating an engine that is supplied a gaseous fuel.

Systems and methods for improving engine torque response are presented. In one example, engine idle speed is increased to shorten engine torque response based on engine operating conditions. The methods and systems may be useful for operating an engine that is supplied a gaseous fuel.

An engine is equipped with a first injection valve that injects fuel into an intake passage, and a second injection valve that injects fuel into a cylinder. The engine is provided with a fuel supply system having a first supply path for the first injection valve and a second supply path for the second injection valve. Moreover, an electronic control unit of the engine executes a unilateral injection process for causing fuel to be injected from one of the first injection valve and the second injection valve and prohibiting fuel injection from the other injection valve, when it is determined that there is a deviation between a property of fuel in the first supply path and a property of fuel in the second supply path.

An engine is equipped with a first injection valve that injects fuel into an intake passage, and a second injection valve that injects fuel into a cylinder. The engine is provided with a fuel supply system having a first supply path for the first injection valve and a second supply path for the second injection valve. Moreover, an electronic control unit of the engine executes a unilateral injection process for causing fuel to be injected from one of the first injection valve and the second injection valve and prohibiting fuel injection from the other injection valve, when it is determined that there is a deviation between a property of fuel in the first supply path and a property of fuel in the second supply path.

A vehicle control apparatus is mounted on a vehicle including an emergency stop function to detect an abnormal state of a driver and automatically stop the vehicle. The vehicle control apparatus provides control at a time of stopping the vehicle and includes process execution sections and a process stop section. The process execution sections perform predetermined emergency processes in response to the emergency stop function stopping the vehicle; the emergency processes control instruments mounted on the vehicle and use a battery of the vehicle as a driving power source. The process stop section stepwise stops at least part of the emergency processes performed by the process execution sections based on a predetermined stop sequence.

A vehicle includes a first sensor, a second sensor, an engine, a fuel supplying device, and a control device. The control device includes a first sensor detecting unit, a second sensor detecting unit, a vehicle status detecting unit, and a control unit. The control unit is switchable among a regular state, a start-stop enabling state, and an idling-stop state. The control unit switches into the start-stop enabling state from the regular state once the control unit determines that the first sensor and the second sensor are both triggered. The control unit further switches into the idling-stop state and controls the fuel supplying device to stop supplying fuel once the control unit determines that the vehicle status meets an idling-stop condition.

A vehicle includes a first sensor, a second sensor, an engine, a fuel supplying device, and a control device. The control device includes a first sensor detecting unit, a second sensor detecting unit, a vehicle status detecting unit, and a control unit. The control unit is switchable among a regular state, a start-stop enabling state, and an idling-stop state. The control unit switches into the start-stop enabling state from the regular state once the control unit determines that the first sensor and the second sensor are both triggered. The control unit further switches into the idling-stop state and controls the fuel supplying device to stop supplying fuel once the control unit determines that the vehicle status meets an idling-stop condition.

A method of diagnosing a temperature sensor provided at a rear stage of an air filter includes: comparing a heating condition factor with a factor threshold; when the heating condition factor is less than the factor threshold, calculating a deviation between a temperature of an intake manifold and a temperature of intake air at a rear stage of an air filter; comparing a temperature threshold with the deviation; and, when the deviation exceeds the temperature threshold, diagnosing the intake air temperature sensor provided at the rear stage of the air filter as failing. According to the method, failure of a temperature sensor provided at a rear state of an air filter of an engine room can be diagnosed.

Methods and systems are provided for flowing exhaust gas in an exhaust system of an engine. In one example, a method may include flowing a first portion of exhaust gas to a turbine, from the turbine to at least one aftertreatment device, then from the at least one aftertreatment device to atmosphere, and flowing a second portion of exhaust gas to the at least one aftertreatment device, bypassing the turbine, then from the aftertreatment device to atmosphere, during a second condition. The method may also include, during a second condition, flowing a third portion of exhaust gas to the at least one aftertreatment device, from the at least one aftertreatment device to the turbine, and then from the turbine to atmosphere, and flowing a fourth portion of exhaust gas to the at least one aftertreatment device, and then from the at least one aftertreatment device to atmosphere, bypassing the turbine.