BRISTOL — A Wood Street man has begun serving 10 years of a 20-year sentence imposed after he admitted assaulting his girlfriend with his car, leaving the scene of a motor vehicle accident, and then trying to elude police.

The victim, Margaret Titterton, 44, suffered a broken arm and shoulder bone and was hospitalized for four days after the attack in late April, according to a spokesman for the attorney general’s office.

Superior Court Judge Netti C. Vogel sentenced James W. Chiellini earlier this month.

The victim told the police that Chiellini was to pick her up at her home at 26 Harborview Ave. on April 24 but that she decided not to accompany him because of his behavior, according to Michael Healey, spokesman for Attorney General Patrick C. Lynch.

Chiellini backed his sport-utility vehicle into her driveway and demanded her keys.

When she wouldn’t turn them over, Chiellini grabbed her and the keys and pulled the woman through the driver’s side window, Healey said.

The defendant then pulled out of the driveway, his tires squealing, according to a neighbor’s statement to the police.

Titterton told the police that she hung onto Chiellini’s shirt so that she wouldn’t get run over.

But then he slammed the brakes so hard she hit the driver’s window, bumped against the door of the car, and then fell to the pavement, Healey said.

He said Chiellini was seen by the police nearby on Hope Street and led a total of four officers on a chase through the center of Bristol that ended when he pulled into the parking lot in the rear of his home at 374 Wood St. Two officers pulled Chiellini from the vehicle, Healey said.

Chiellini was brought before Judge Vogel on July 2 as a probation violator on a burglary charge dating from 1985.

He pleaded no contest to two felony charges resulting from the attack on Titterton: assault with a dangerous weapon, a car; and leaving the scene of an accident resulting in injury, Healey said. The attorney general dismissed two misdemeanor charges, eluding the police and resisting arrest, he said.

Vogel sentenced him on July 2 to 20 years in the ACI, 10 to serve and 10 years suspended, in connection with the assault.

She ordered Chiellini to make restitution to the victim and to have no contact with her after he is released from jail.

Chiellini is also serving a five-year concurrent sentence as a probation violator, Healey said.