Abstract: Middleware for enabling interoperation between a chatbot application and a plurality of different systems are provided. According to one set of embodiments, a computer system implementing the middleware can receive a request from a user via the chatbot application and automatically determine, based on information included in the request, a system in the plurality of systems that the request is directed to and a service of the system that should be called for handling the request. The computer system can then invoke the service, receive a response from the system, and return the response to the chatbot application for presentation to the user.

Abstract: Middleware for enabling interoperation between a chatbot application and a plurality of different systems are provided. According to one set of embodiments, a computer system implementing the middleware can receive a request from a user via the chatbot application and automatically determine, based on information included in the request, a system in the plurality of systems that the request is directed to and a service of the system that should be called for handling the request. The computer system can then invoke the service, receive a response from the system, and return the response to the chatbot application for presentation to the user.

Abstract: Methods and system are provided for a vehicle truck assembly which includes a spring coupling an axle carrier to a truck frame. In one example, the system comprises a substantially vertically-mounted hydraulic actuator which generates hydraulic forces between the axle carrier and the truck frame. The actuator includes a cylinder, a piston, and a piston rod. Further, the actuator is coupled between the axle carrier and the truck frame with longitudinal and lateral play so that the axle carrier can move laterally and longitudinally with respect to the truck frame while the actuator applies hydraulic force.

Abstract: Truck assemblies, systems and methods are provided for transferring weight supported by various wheels, and axles. An example truck assembly may include a truck frame element, and a carrier coupled with the truck frame element. A bias may be configured to bias the carrier away from the truck frame element. An actuatable linkage arrangement may include a compliant linkage coupled with the carrier. The compliant linkage may pull the carrier against the bias in a first direction.

Abstract: Methods and system are provided for a vehicle truck assembly which includes a spring coupling an axle carrier to a truck frame. In one example, the system comprises a substantially vertically-mounted hydraulic actuator which generates hydraulic forces between the axle carrier and the truck frame. The actuator includes a cylinder, a piston, and a piston rod. Further, the actuator is coupled between the axle carrier and the truck frame with longitudinal and lateral play so that the axle carrier can move laterally and longitudinally with respect to the truck frame while the actuator applies hydraulic force.

Abstract: Truck assemblies, systems and methods are provided for transferring weight supported by various wheels, and axles. An example truck assembly may include a truck frame element, and a carrier coupled with the truck frame element. A bias may be configured to bias the carrier away from the truck frame element. An actuatable linkage arrangement may include a compliant linkage coupled with the carrier. The compliant linkage may pull the carrier against the bias in a first direction.