Teleflex Canada Incorporated

Marine Canada Acquisition Inc.

Ray Tat-Lung Wong

Eric B Fetchko

Art Ferguson

Jon Scott

Xue Mei Liu

Wan Yan Ho

Colin Van Leeuwen

A steering apparatus includes a rotatable steering shaft having an exterior, an input end for connecting a steering member and an output end for connecting to at least one steerable wheel of a vehicle. An electric motor is operatively connected to the steering shaft for rotating the steering shaft. The shaft is magnetized and serves as a torque sensor transducer. At least one magnetic field sensor is adjacent to the exterior of the steering shaft. The steering shaft and the at least one magnetic field sensor form a torque sensor for sensing torque applied to the steering shaft by the manually operable steering member and provide a signal to operate the electric motor to assist steering of the steering shaft by the manually operable steering member.

Torque sensor type power steering system with solid steering shaft and vehicle therewith

A hydraulic steering system comprises two hydraulic actuators, each having two actuator ports. There is a helm for steering the system in a first direction and a second direction. The helm is operatively connected to a helm pump. The helm is operatively connected to a first actuator port and a second actuator port. There is a power hydraulic steering pump hydraulically connected to a third of the actuator ports and a fourth of the actuator ports. There is a sensor capable of detecting steering of the system. The sensor is operatively connected with the power steering pump such that the power steering pump pumps hydraulic fluid towards the third of the actuator ports when the helm is steered in the first direction and pumps hydraulic fluid towards the fourth of the actuator ports when the helm is steered in the second direction.

Power steering systems for multiple steering actuators

A steering apparatus for a marine craft or other vehicle having a communication bus and a plurality of helm apparatuses. Each of the helm apparatuses includes a steering device. Additionally, each of the helm apparatuses is connected to the communication bus. Each of the helm apparatuses provides helm signals indicative of incremental and decremental movement, of the steering device thereof. The helm signals are transmitted over the communication bus. The steering apparatus further includes a rudder which has an actuator and a control means for receiving each of the helm signals and which provides rudder signals to the actuator to steer the rudder in accordance with movement of the steering devices of the helm apparatuses. The control means is connected to the communication bus. Each of the rudder signals are derived from each of the helm signals from one of the helm apparatuses which is steered fastest when a plurality of the helm apparatuses is simultaneously steered.

Multiple steer by wire helm system

A helm apparatus for a marine craft or other vehicle having a steered member such as a rudder includes a mechanically rotatable steering device and a sensor which senses angular movement of the steering device when the craft is steered. A communication link to the rudder enables the helm to monitor the rudder position. A bi-directional stop mechanism is actuated when the helm determines that the rudder position is beyond starboard or port hard-over thresholds, indicating that the rudder has reached a limit of travel. The helm can cause the stop mechanism to fully engage the steering device to stop further rotation of the steering device in a first rotational direction, corresponding to rotational movement towards the limit of travel.

Growing community of inventors

Richmond, CA, United States of America

Ray Tat-Lung Wong