Abstract:
In various embodiments, the present disclosure includes a cruise control system with (a) a vehicle having a steering system, an accelerator system, a braking system, a battery, a display, a processor, and memory; and (b) a cruise control program, operatively coupled to the accelerator system and configured to display a most recent cruising setpoint and a menu of user-adjustable cruising setpoints.
Abstract:
A method for comprehensive integrated control of a compression-ignition internal combustion engine having integral fuel pump-injectors utilizing an electronic control unit is disclosed. The control strategy integrates various functions of engine control including fuel delivery, cooling fan control, engine speed governing and overspeed protection, engine braking, torque control, and vehicle speed diagnostics and control. Cooling fan control is integrated with vehicle speed diagnostics and control as well as fuel delivery to provide an integrated cruise control function which incorporates engine braking. The method also includes improved control over the various engine speed governors while improving idle quality by balancing the power delivered by each of the engine cylinders when at idle. The integrated torque control employs functions to reduce NOx emissions and noise utilizing adaptive fuel delivery timing and a split injection strategy.
Abstract:
A control system for a vehicle has a continuously variable automatic transmission, an automatic transmission control system for controlling the automatic transmission, and a cruise control system for controlling speed of the vehicle to a desired cruising speed. The cruise control system has a vehicle speed sensor, and a desired cruising speed providing section responsive to an output signal of the vehicle speed sensor for providing the desired cruising speed. The vehicle speed sensor is used for both the automatic transmission control system and the cruise control system.
Abstract:
An electric setting drive for an automotive vehicle speed control or regulating system has an electric motor (1), a gearing (2) which is connected to said motor, and has an electromagnetic rapid-disconnect coupling as well as elements for converting a rotation of the gearing into a linear motion. The linear motion can be transmitted via a pull cable to a spring-loaded throttle valve. For the conversion of the rotary movement into linear movement there is provided a threaded spindle (3) which is turnably connected with the gearing (2) and engages into a thread of a displaceably mounted electrically energizable pot magnet (4). Facing the pot magnet (4) there is a linearly movable armature plate (6) to which the pull cable (7) is attached.
Abstract:
A device for the electric control of the speed of an automotive vehicle having a guide signal transmitter developed as settable memory, having a comparison element fed with the guide signal and a vehicle-speed signal, having a control amplifier which is arranged behind the comparison element and gives off a set signal to a setting drive for the displacement of a throttle valve which controls the air-fuel mixture of an internal combustion engine, having a position indicator coupled with the throttle valve apparatus and having a guide signal transmitter developed as settable memory. A comparator for comparing the set signal with a feedback signal given off by the position indicator is provided, the output value of which sets the guide signal transmitter at such a large guide signal that the position of the throttle valve at an end of the setting process, which has been determined during the setting by a driver, is established by the set signal.
Abstract:
A cruise control system having means to provide a signal corresponding to a desired speed for use by a servo control to regulate the speed. This system uses a current source to ramp charge a first capacitor. A comparator compares magnitude of the voltage on the first capacitor against the signal representative of the desired speed. A first counter is used to accumulate counts from a first frequency generator. A latch counter capable of following the counts in the first counter is used to store the counts when the comparator indicates the voltage on the first capacitor is substantially equal to the magnitude of the signal representative of the speed. A digital comparator then compares the counts stored in the latch counter against counts being accumulated anew in the first counter while the first capacitor is being recharged. Means are provided to inhibit the first capacitor from being charged further after the digital comparator indicates equality between the quantity of the counts being compared. Means to transfer the voltage on the first capacitor to a second capacitor are used so that the voltage on the second capacitor can be compared against the signal representative of the actual speed which then provides an output to the servo control to regulate the speed.
Abstract:
In various embodiments, the present disclosure includes a cruise control system with (a) a vehicle having a steering system, an accelerator system, a braking system, a battery, a display, a processor, and memory; and (b) a cruise control program, operatively coupled to the accelerator system and configured to display a most recent cruising setpoint and a menu of user-adjustable cruising setpoints.
Abstract:
A prime mover control device of a work vehicle equipped with a torque converter includes: a speed ratio calculation unit that calculates a speed ratio of the torque converter; and a rotational speed limit unit that, when a speed ratio falls within a preset speed ratio range, limits a maximum rotational speed of the prime mover to be lower as compared with a maximum rotational speed set when a speed ratio falls without the preset speed ratio range. When a state in which the speed ratio calculated by the speed ratio calculation unit falls within the preset speed ratio range is maintained for a predetermined time period, the rotational speed limit unit changes a maximum rotational speed of the prime mover to a higher maximum rotational speed than the limited maximum rotational speed limited to be lower by the rotational speed limit unit.
Abstract:
When a constant speed running control is released during a changing operation of target vehicle speed, a target vehicle speed in just before the changing operation of target vehicle speed is set to a target vehicle speed at the time when the constant speed running control is resumed.
Abstract:
A method for comprehensive integrated control of a compression-ignition internal combustion engine having integral fuel pump-injectors utilizing an electronic control unit is disclosed. The control strategy integrates various functions of engine control including fuel delivery, cooling fan control, engine speed governing and overspeed protection, engine braking, torque control, and vehicle speed diagnostics and control. Cooling fan control is integrated with vehicle speed diagnostics and control as well as fuel delivery to provide an integrated cruise control function which incorporates engine braking. The method also includes improved control over the various engine speed governors while improving idle quality by balancing the power delivered by each of the engine cylinders when at idle. The integrated torque control employs functions to reduce NOx emissions and noise utilizing adaptive fuel delivery timing and a split injection strategy.