A first control unit executes a valve stop inertial running including stopping an intake valve and an exhaust valve in a closed state during rotation of an output shaft, stopping supply of fuel to an engine, and setting a clutch in an engaged state to drive pistons of the engine by a rotational force from driving wheels. A second control unit executes a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine based upon an intake conduit pressure. When a cancellation request is made during execution of the valve stop inertial running, a transient control unit operates the intake valve and the exhaust valve, and controls a throttle valve to an idling opening or less, thereby supplying a negative pressure to an intake passage.

A system for providing deceleration in a hybrid vehicle having a hydraulic braking system and a regenerative braking system. The system includes a hydraulic braking sensor configured to determine a status of the hydraulic braking system. The system also includes a brake pedal unit configured to determine brake pedal data. The system also includes a battery configured to store energy generated by the regenerative braking system. The system also includes a processor configured to determine whether the hydraulic braking system is compromised. The processor is also configured to detect an emergency braking situation based on the brake pedal data. The processor is also configured to increase engine speed of the engine to induce engine braking, and increase the maximum charge limit of the battery to increase a regenerative braking capacity of the regenerative braking system when the hydraulic braking system is compromised and the emergency braking situation is detected.

A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A model predictive control (MPC) module determines a set of target values based on the second torque request, a model of the engine, and a matrix having dimensions of (m+n) by (m+n). n is an integer greater than zero that is equal to a number of lower boundary constraints used in the determination of the set of target values. m is an integer greater than zero that is equal to a number of constraints used in the determination of the set of target values other than the lower boundary constraints. An actuator module controls opening of an engine actuator based on a first one of the target values.

A first control unit executes a valve stop inertial running including stopping an intake valve and an exhaust valve in a closed state during rotation of an output shaft, stopping supply of fuel to an engine, and setting a clutch in an engaged state to drive pistons of the engine by a rotational force from driving wheels. A second control unit executes a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine based upon an intake conduit pressure. When a cancellation request is made during execution of the valve stop inertial running, a transient control unit operates the intake valve and the exhaust valve, and controls a throttle valve to an idling opening or less, thereby supplying a negative pressure to an intake passage.

Methods, systems, and devices for a throttle response control system that controls the rate at which a throttle opens. The throttle response control system includes one or more sensors and an electronic control unit connected to the sensors, the one or more sensors being configured to detect an air temperature in an intake hose, an engine speed, and an air pressure in the intake manifold. The electronic control unit is configured receive data from the one or more sensors and to activate a rate limit logic when the air temperature in the intake hose and the engine speed are greater than a temperature threshold and an engine speed threshold, respectively, and the air pressure in the intake manifold is less than a pressure threshold, causing the throttle to slow the rate at which the throttle opens based on the air temperature in the intake hose.

A work vehicle includes an engine; a transmission device configured to adjust motive power from the engine; a centrifugal clutch between the engine and the transmission device; and a throttle controller configured to electronically control an opening degree of a throttle valve of the engine, the throttle controller including a filter value deriver configured to derive an opening degree filter value from an engine rotational speed of the engine and the opening degree, the throttle controller being configured to electronically control the opening degree with use of the opening degree filter value, the filter value deriver being configured to derive a first opening degree filter value for decreasing throttle responsiveness of the engine under a derivation condition of the engine rotational speed being not higher than a centrifugal clutch connection rotational speed of the centrifugal clutch.

Methods, systems, and devices for a throttle response control system that controls the rate at which a throttle opens. The throttle response control system includes one or more sensors and an electronic control unit connected to the sensors, the one or more sensors being configured to detect an air temperature in an intake hose, an engine speed, and an air pressure in the intake manifold. The electronic control unit is configured receive data from the one or more sensors and to activate a rate limit logic when the air temperature in the intake hose and the engine speed are greater than a temperature threshold and an engine speed threshold, respectively, and the air pressure in the intake manifold is less than a pressure threshold, causing the throttle to slow the rate at which the throttle opens based on the air temperature in the intake hose.

A vehicle includes: a driving source; a rotation sensor that detects a rotational speed of the driving source; control circuitry; and an actuator that operates the driving source. When the rotational speed of the driving source has exceeded a preset upper threshold, the control circuitry executes suppression control that suppressed an output power of the driving source in comparison with before the rotational speed of the driving source exceeds the upper threshold. In the suppression control, the control circuitry gives to the actuator a command that makes the output power of the driving source suppressed in comparison with before the suppression control is executed, in accordance with an excess degree set in relation to an excess time period that is a time period in which the rotational speed of the driving source has exceeded the upper threshold.