Abstract:
For a cement mixer installed on a vehicle, a vehicle controller area network is modified to develop from engine speed, hydraulic power take-off system pressure and programmed data on power take-off pump capacity estimates of rotational speed and barrel rotational count. The network can also maintain a constant barrel rotational speed during transportation.
Abstract:
When a truck engine (12) is not running, an auxiliary coolant heater (32) can heat engine coolant and pump it through an occupant compartment heater (16). A coolant flow control system (10), including a valve assembly (84), associates the auxiliary heater (32) with both the occupant compartment heater (16) and engine (12) for selectively distributing heated coolant. When engine (12) has been running and is shut off, auxiliary heater (32) can be turned on and valve assembly (84) operated for occupant compartment heating while keeping the engine (12) warm. When the engine is cold, the auxiliary heater can be turned on and the valve assembly can be operated for engine pre-heating prior to starting.
Abstract:
In a pneumatic brake system for a motor vehicle, a variable speed electric motor is connected to a high voltage direct current power supply for variable energization, thus varying the operating rate of a compressor and the rate of pressurization of the brake system storage tanks. The operating rate of the compressor is varied responsive to pressure readings taken from the storage tanks during pressurization to minimize energy consumption.
Abstract:
A hydraulic vehicle power take off system is implemented using modular components and utilizing a vehicle controller area network for integration with vehicle systems. The modular components are preferably in turn adapted from standard industry components.
Abstract:
A hydraulic vehicle power take off system is implemented using modular components and utilizing a vehicle controller area network for integration with vehicle systems. The modular components are preferably in turn adapted from standard industry components.